Invoice · BY-2026-001

Built in Gold for GoldCat.

Single-engagement build of the GoldCat Premium Operations System — anti-theft kiosk, attendant app, stock-keeper control, front-desk dashboard, and owner reconciliation engine. Six modules. One shipment. Pure gold.

Black and Yellow
Abuja, Nigeria
08162137999
promiseemekaigbokwe@gmail.com
INV · BY-2026-001
Issued: 16 May 2026
Valid until: 15 June 2026
Prepared for
GoldCat Premium Spa & Salon
Lagos, Nigeria
c/o Mrs. Goldcat, Owner
Returning client · Engagement #4
Project
GoldCat Operations System
Custom premium anti-theft + queue + inventory platform. Six surfaces, one shipment. ~10 weeks of agent-driven build.
Scope of Work & Pricing
Module 01 Customer Kiosk (iPad)
₦4,200,000
Phone-first self-check-in. The brand moment customers tell friends about — Aesop-level polish on a Lagos spa floor.
Phone-first flow — 5 screens (welcome, phone, recognition, service, ticket)₦950,000
Fresha auto-recognition (CSV match) + iCal real-time appointment sync₦680,000
Ticket issuance, receipt printing, WhatsApp/SMS confirmation₦520,000
Premium motion choreography + "Welcome back, ___ ✨" reveal moment₦1,050,000
English + Yoruba language toggle₦380,000
Microcopy library — premium concierge tone across every screen₦220,000
Privacy auto-clear, 30s inactivity timeout, anti-shoulder-surf₦200,000
Accessibility (Dynamic Type, VoiceOver, high-contrast), full QA₦200,000
Module 02 Attendant Mobile App
₦3,800,000
Stylists' spa-issued phones. Built for 50+ taps per shift with wet, oily hands — and built to make logging easier than not logging.
Biometric session login (Face ID / Touch ID, PIN fallback)₦340,000
Queue view + "you're up next" gold card + assignment push notifications₦620,000
Active service flow — start, in-progress timer, mark-complete long-press₦780,000
"Request all expected" mega-button + offline-queued product requests (the forcing function)₦890,000
Commission display (running total + 7-day sparkline + motivational copy)₦440,000
Push notifications + haptic feedback + sound cues₦310,000
UI polish + QA across 8 Android devices₦420,000
Module 03 Stock Keeper App & Decanting Workflow
₦3,600,000
The locked cabinet's digital twin. Every drop of product traced to a ticket, with photo-evidence decanting that closes the inventory loop.
Request inbox — priority sort + 1-tap "Issue All" mega-button₦620,000
Live inventory dashboard, color-coded levels, low-stock alerts₦560,000
Decanting workflow — parent-batch scan, label print, yield reconciliation + photo evidence₦880,000
Returns workflow — partial bottles back, volume verify, claim mismatch flagging₦420,000
End-of-day guided count wizard — <15 min for 80 SKUs₦680,000
Audit log + service template management (owner-approved edits)₦440,000
Module 04 Front Desk Dashboard
₦4,400,000
Runs on the existing front-desk desktop next to Fresha. The single payment exit — hostess flow + theft-proof checkout.
Live floor view — every customer color-coded by status, urgency-sorted₦780,000
Customer-to-stylist assignment flow — judgment over rules₦620,000
3-tap payment flow + receipt printing (target: 22s per payment)₦920,000
Customer-facing display (Dell 24") — transparency screen constrains the receptionist₦440,000
Fresha Today panel — CSV + iCal feed merged for same-day appointment freshness₦580,000
End-of-shift reconciliation wizard + mandatory geo-fenced POS-slip photo₦680,000
Hospitality features — greet by name, VIP flag, returning-customer history₦380,000
Module 05 Owner Dashboard + Reconciliation Engine
₦5,600,000
The theft-detection cockpit. Reads bank inflows from Mono Open Banking, matches against services rendered, surfaces patterns within 24 hours.
Mobile PWA + responsive desktop layout for owner's iPhone₦620,000
Home cockpit — 5-second reconciliation pair + KPIs + action queue₦780,000
5-pass reconciliation algorithm — payment match logic, joint-payment handling, false-positive defenses₦1,180,000
Mono Open Banking integration — webhook handler, polling fallback, manual CSV fallback₦780,000
Per-attendant heatmap + outlier detection (30-day rolling baselines)₦680,000
Inventory drift report — 3-tier outlier system (real-time, per-attendant, per-product macro)₦620,000
Discrepancy drill-down + investigation workflow₦480,000
Push notifications + severity-tiered alert routing₦240,000
Financial export — CSV + PDF for accountant; FIRS-compatible₦220,000
Module 06 Foundation, Audit & Integrations
₦3,400,000
Everything below the surface. Built once, holds the whole system up — including the tamper-evident audit trail that makes evidence court-admissible.
PostgreSQL schema, migrations, multi-tenant prep (future white-label insurance)₦580,000
Hash-chained append-only audit trail + S3 Object Lock daily exfiltration₦620,000
Auth — biometric for staff, WebAuthn passkey for owner (Clerk/WorkOS)₦320,000
Fresha CSV importer — source-agnostic (works for any future booking source)₦340,000
Fresha iCal feed poller — 15-min sync for same-day bookings₦240,000
Termii SMS integration + sender ID registration + 14 templates₦380,000
WhatsApp Business API + Meta verification support + template approvals₦480,000
Hosting + monitoring + MDM (Scalefusion device lock)₦440,000
Total Investment Build Engagement
NGN25,000,000
+ 7.5% VAT applied on invoice issue · 5% WHT retained by client (certificate to be issued) Ex. VAT
Payment Schedule · Four Milestones
₦7.5M
30% · On signing
Trigger
Contract executed · build kickoff Week 1 · hardware POs issued
₦7.5M
30% · Internal demo
Trigger
End of Week 4 · all 5 surfaces working end-to-end on staging
₦7.5M
30% · Training complete
Trigger
End of Week 7 · hardware deployed + full team trained + system on production
₦2.5M
10% · Launch acceptance
Trigger
End of Week 10 · live for 14 days · reconciliation report runs clean · owner sign-off
Pass-through · Owner pays vendors directly (NOT in this invoice)
Hardware (iPads, Tecno phones, receipt printer, network, CCTV, smart-lock, customer display, etc.)Owner buys direct from Slot / Pointek / Konga · one-time
~₦10,790,000
Monthly recurring (hosting, Mono, WhatsApp, Termii, ISPs, MDM, consumables)Owner pays vendors directly · transparent at cost
~₦397,000 / mo
Maintenance retainer (post-launch)10 hrs/mo soft cap · 4-hour critical SLA · monthly check-in · quarterly review
₦750,000 / mo
New-feature time & materials (above retainer cap)Charged only when needed · invoiced monthly
₦35,000 / hr
Optional NDPR fractional DPO (external)Strongly recommended · NITDA-licensed DPCO firm
₦200–500k / quarter
Build engagement is fixed-price and inclusive of all development, design, testing, deployment, training, and 30 days of post-launch support. Discovery sprint optional at ₦750,000 (1 week) — credited against the build if signed within 14 days of issue. Hardware and monthly recurring vendor costs are pass-through, billed directly to GoldCat by the vendors. Source code ownership transfers to GoldCat on final payment; GoldCat receives a perpetual license to use, modify, and host the system. Multi-tenant scaffolding in the data model is mutual insurance toward potential future white-label arrangements between GoldCat and Black and Yellow.
Payment to
Account namePromise Igbokwe BankGTBank Account number0241206110 ReferenceBY-2026-001 · GoldCat Ops
"The landscape is bronze.
GoldCat is gold."