Neidio i’r llywio Neidio i’r cynnwys Neidio i’r troedyn

Rydym yn defnyddio cwcis i wella eich profiad o'n gwefan.
Gallwch ddarganfod mwy neu ddileu allan o rai cwcis - mae'r polisïau hyn ar gael yn Saesneg.

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Letter to complain about a phone, TV or internet bill

Mae’r cyngor hwn yn berthnasol i Cymru

Use this letter template to complain to your supplier about a problem with a bill for your phone, TV or internet service.

It should help the trader understand your point of view and their legal obligation to sort out the problem.

You can send the letter by post or copy the text into an email. If you’d prefer to talk to the trader on the phone or in person you could read it out to them.

To find out more about when you should use this letter, see our advice on how to dispute a phone, internet or TV bill.

Further help

Contact the Citizens Advice consumer helpline on 0808 223 1133 if you need more help - a trained adviser can give you advice over the phone. You can also use an online form.

If you’re in Northern Ireland, contact Consumerline.

A oedd y cyngor hwn yn fuddiol?
Pam nad oedd y cyngor yn fuddiol?

Dywedwch fwy wrthym am pam nad oedd ein cyngor yn helpu.

A oedd y cyngor hwn yn fuddiol?

Diolch i chi, cyflwynwyd eich adborth.

UAT (Release)