We will, however, only disclose your personal details where it is necessary to do so to enable us to deal with issues you have asked us to help you with.
Byddwn yn datgelu eich manylion personol, fodd bynnag, dim ond pan fydd angen gwneud hynny i'n galluogi i ymdrin â materion yr ydych wedi gofyn i ni eich helpu â hwy.