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One number, clearly limited scope. Before calling, check whether your question is account-specific — if so, your network's official line is the right first call.
Independence notice
Thirdgreenovo is an independent third-party information service. We are not affiliated with, authorised by, or acting for any network named on this page. Trade marks belong to their owners and identify the subject of guidance only. For account, billing or contract matters, contact your network's official customer service. Calls to our line are standard geographic rate and provide general guidance only.
Guidance line
020 3475 9516
Standard UK geographic (020) number — charged at your provider's normal rate and typically included in inclusive-minute allowances. No premium-rate charges apply from us.
What we can help with
- Explaining the switching (PAC/STAC) process and your rights during it
- How to check coverage properly and what to try for weak signal
- How the complaints ladder and the free ombudsman work
- Understanding virtual networks and which host carries which brand
- General scam-safety guidance
What we must refer elsewhere
| Your matter | Right contact |
|---|---|
| Billing, contract, cancellation, upgrades, personal data | Your network's official customer service (number on your bill) |
| Fraud in progress or money lost | Your bank immediately, then Action Fraud |
| Regulatory complaints about a network | Ofcom / the Communications Ombudsman or CISAS |
Call securityWe will never ask for one-time passcodes, banking or card details, or account passwords. If anyone claiming to be us does, hang up — it is not us.