The person looking at your complaint will usually need to see the files we hold relevant to your complaint, and we will on occasion, need your consent to view all related information.
Fel rheol, bydd angen i’r unigolyn sy’n ystyried eich cwyn weld y ffeiliau sydd gennym sy’n berthnasol i’ch cwyn, ac weithiau bydd arnom angen caniatâd gennych chi i weld yr holl wybodaeth berthnasol.