The Cost of Not Paying Attention
Mobile bills in the UK are often more complicated than they should be. Between the fine print, technical jargon, and “extras” buried in contracts, businesses frequently pay more than expected. The problem? Many of these costs are hidden in plain sight.
Here are 5 hidden charges you should watch out for on your mobile bill.
1. Out-of-Bundle Data
Data overages remain the most common hidden charge. Even with “unlimited” contracts, fair usage policies can kick in, slowing speeds or adding costs after certain thresholds.
2. International Roaming
If employees travel abroad, roaming can add significant costs. Post-Brexit, UK businesses face renewed EU roaming fees, often missed until the bill arrives.
3. Premium Numbers
Dialling premium-rate numbers (such as customer helplines) can add up quickly. These aren’t always obvious charges until they appear on the bill.
4. Bolt-On Services
Providers often add extras like voicemail upgrades, cloud storage, or call forwarding packages. If you’re not using them, they’re wasted costs.
5. Paper Billing Fees
It sounds old-fashioned, but some providers still charge for posting physical bills instead of email statements. It’s a small fee that adds up over time.
How to Avoid These Charges
- Review Bills Regularly – Check line-by-line instead of just paying the total.
- Educate Staff – Ensure employees know what activities trigger extra charges.
- Use Bill Audits – Regular audits can uncover long-standing overcharges.
- Switch Providers – Don’t stick with a provider that constantly adds fees.
👉 Unsure if you’re overpaying? Your Comms Group provides free telecom bill audits and smarter options like SIM-Only Deals and Business Phone Systems.
📩 Contact us at [email protected].
For Resellers

Hidden charges create frustration for customers — and opportunity for resellers. By offering transparent billing and cost-saving alternatives, resellers can win trust. Combine that with services like VoIP Solutions or Broadband Solutions, and customers will see you as a partner, not just a supplier.
Final Thoughts
Mobile bills shouldn’t feel like a puzzle. By knowing the top hidden charges to watch for, businesses can avoid overpaying and keep their telecom costs under control.
Want to uncover hidden savings in your mobile bills?
👉 Speak to Your Comms Group today about Advanced Threat Security, Broadband Solutions, and custom mobile packages.
📩 Email us at [email protected].