How can you prevent the Council from using information about you for Direct Marketing or stop it from using information for a purpose which could cause you damage or distress?
Sut gallwch atal y Cyngor rhag defnyddio gwybodaeth amdanoch i Farchnata’n Uniongyrchol neu ei atal rhag defnyddio’r wybodaeth at ddiben a allai beri difrod neu boen meddwl i chi?