Revenue Assurance Built Into Your Billing
Find missed charges and loss-making services before they cost you another month.
Billing errors rarely announce themselves. ZOEY’s built-in revenue assurance tools compare what you are charged with what you bill, highlight margins that need attention and flag changes between bill runs.
Problems are resolved before invoices reach your customers, so the revenue you have earned is the revenue you collect.






Missed Charges Found
Supplier Reconciliation
Margin Analysis
Pre-Invoice Checks
How Much Revenue Is Your Billing Leaking?
Revenue leakage is rarely one big mistake. It is usually a handful of small gaps that repeat, quietly, every month.
Supplier Charges Not Billed
Services you pay your supplier for that never appear on a customer invoice.
Loss-Making Services
Tariffs that cost more to deliver than you charge, hidden in thousands of lines.
Unallocated Usage
Usage records that can’t be matched to a customer, so they are never billed.
Unexplained Variances
Bill runs that change month on month, with no easy way to see why.
Four Layers of Protection on Every Bill Run
Each check is part of the normal billing workflow, so nothing depends on a spreadsheet or a separate tool.
Unallocated Usage
Usage that cannot be allocated or rated, such as missing CLI mappings or destination rates, is held in one place with guided wizards to resolve it quickly.
Supplier Reconciliation
Supplier records are compared with the services you bill month on month, highlighting new, closed and changed charges that need your review.
Margin Analysis
Granular margin views by customer, CLI or network identify loss-making services, unallocated wholesale costs and unusual margins automatically.
Pre-Invoice Checks
Month-on-month variance analysis compares each draft bill run with the last, with drill-down into any account or service that has changed.

Insight That Mirrors How You Run Your Business
ZOEY’s margin analysis follows the day-to-day running of your business, with interactive dashboards and in-screen drill-downs from summary level to individual services.
Filter and sort by account, see exactly what has changed and why, and act before an unexplained variance becomes lost revenue. Wizard-led resolution paths mean fixing a problem is as quick as finding it.
- Margins by customer, CLI or network
- Month-on-month variance analysis
- Loss-making usage and high-margin charges
- Wizard-led resolution paths
Protecting Revenue Without Adding Workload
Revenue assurance in ZOEY isn’t an extra job for your team. The checks run as part of every billing cycle, and unallocated usage is flagged throughout the month so bill runs can start on time.
Prefer to hand it over? With bureau billing, our specialists resolve unallocated usage for you.
Increased Profitability
Find opportunities to increase revenue and reduce costs from real usage and spend.
Smarter Pricing
Use margin insight to fine-tune your pricing while staying competitive in your market.
Better Decisions
Focus your team on the accounts and services that make the biggest difference to margin.
Fewer Disputes
Accurate invoices mean fewer credits, fewer queries and happier customers.
Why Partners Choose Tekton Billing
Telecoms providers, MSPs and subscription businesses choose Tekton Billing for far more than software. Here is what sets us apart.
Fully Supplier-Agnostic
Tekton Billing isn’t tied to any network or distributor, so you choose the suppliers that suit your business and change them whenever you need to.
New Providers Built Free
Usage loads from more than 400 supported providers. If one of yours isn’t on the list, we build the connection for you at no extra cost.
Your Brand, Front and Centre
Customers see your logo, colours and web address on their portal, invoices and emails, never ours, giving you a real edge over competitors.
Everything Included
Unlimited users, every module, hosting, branding and the customer portal come as standard, with no light version and no add-on fees.
UK Billing Specialists
Our UK-based team understands billing inside out, from rate cards and supplier files to month-end, and is on hand whenever you need us.
Certified and Secure
Tekton Billing is certified to ISO 27001 and Cyber Essentials, and every ZOEY user is protected by two-factor authentication as standard, with single sign-on (SSO) available for your team and your customers.
Revenue Assurance Questions
Is revenue assurance an extra module?
No. Supplier reconciliation, margin analysis, unallocated usage and pre-invoice checks are all included in ZOEY at no extra cost.
When do the checks run?
The checks run as part of every billing cycle, and unallocated usage is flagged throughout the month so issues are resolved before the bill run.
Can Tekton Billing run the checks for us?
Yes. With bureau billing, our specialists resolve unallocated usage as part of the service.
Can we raise one-off charges too?
Yes. ZOEY supports manual ad-hoc invoicing alongside your regular billing, so one-off charges never need a workaround.
What Our Partners Say on Google
Real reviews from businesses that run their billing on ZOEY with Tekton Billing.
Joe Barker
Google review
“They have delivered on everything they promised… We bill on time every month, we have a close eye on our costs and we are guided with their expertise on their managed service.”
Zuzanna Ikonix
Google review
“We recently transitioned to Tekton, and the experience was impressively smooth and hassle-free, thanks to the outstanding support from everyone involved.”
Jamie Shaw
Prestige Telecom Group · Google review
“At Prestige Telecom Group, we have used Tekton Billing for a number of years now, and I have never had an issue… Thank you Tekton for all of the support over the years!”
Find Out What Your Billing Could Be Missing
Bring a recent supplier invoice and bill run. We will show you how ZOEY reconciles the two and where revenue could be slipping through.
01
Tell Us About Your Business
Share the services you sell, the suppliers you use and where billing takes too long today.
02
See ZOEY With Your Scenarios
We walk through your tariffs, supplier files and invoices in ZOEY, from the admin portal to the customer view.
03
Get a Clear Proposal
You receive a clear proposal covering scope, migration and pricing, with no obligation to proceed.