British Gas
This number is listed by British Gas on its own website (Priority Services Register for Pay As You Go customers).
Source: “top up your meter), please call 0800 294 8604” (opens in a new tab). Checked 13 October 2026.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call British Gas back on a number you've found yourself, such as the one on their own website or on a letter or bill from them.