Mobile Data, Wi-Fi and Roaming: Avoiding Surprise Phone Bills at Home and Abroad

Unexpected phone bills are often caused by using mobile data or “roaming” without realising. This course explains in plain English what mobile data and Wi-Fi are, how to check your allowance, the Ofcom roaming alert rules, and simple settings that help you avoid bill shock.

This course gives general information about UK rules and official guidance as at October 2026. It is not legal, financial or medical advice. Rules can change and can differ between England, Scotland, Wales and Northern Ireland, so always check the official sources listed. Tutwoo is not connected to or endorsed by any organisation mentioned.

© 2026 Tutwoo UK Limited. This course was created in-house by Tutwoo and is our original work. It is for your own learning only: please do not copy, share, record or resell it.