Negeseuon ffacs

1. Fill in the form

Hefyd ar gael ynWelsh language(PDF)

2. Anfonwch y ffurflen aton ni

Trwy ebost: If all your supporting evidence is available electronically, you can send your form by email.

1. Save this form to your computer.
2. Llenwch y ffurflen a'i chadw eto. We say this because forms can arrive blank if they’re not saved to your computer before sending them to us. 
3. Open a new email, with 'Report a concern' in the subject line.
4. Attach this form and any other documents you wish to send us. Please ensure your combined email attachments do not exceed 10 MB in a single email. You may send attachments over multiple emails, but please indicate this in the subject line. 
5. Anfon i [email protected]

Rydym yn defnyddio Diogelwch Haenau Trawsyrru (TLS) i amgryptio a diogelu traffig e-bost. Os nad yw’ch gweinydd post chi yn cynnal TLS, dylech fod yn ymwybodol ei bod yn bosibl na fydd unrhyw negeseuon ebost y byddwch yn eu hanfon atom yn cael eu diogelu wrth eu trawsyrru.

Trwy'r post:If your supporting evidence is in hard copy, you can print out the form and post it to us (with your supporting evidence) to.

Cyswllt cwsmer
Information Commissioner's Office
Wycliffe House
Water Lane
Wilmslow
SK9 5AF

I gael gwybodaeth am yr hyn yr ydyn ni’n ei wneud â data personolpolisi preifatrwydd.