You can do this in the same way as the access request by completing and submitting our web form or if you’d prefer you can print the relevant form and send it in the post to:
Gallwch wneud hyn trwy’r un dull â gwneud cais am weld data, trwy gwblhau a chyflwyno ffurflen ar-lein neu os yw’n well gennych, trwy argraffu’r ffurflen berthnasol a’i hanfon trwy’r post i: