The claimant may reject the correction but only by notifying the WRA that they wish to reject it within 3 months, beginning with the date on which the notice of correction was issued to the claimant.
Gall yr hawlydd wrthod cywiriad, dim ond ar yr amod ei fod yn rhoi gwybod i ACC ei fod am wneud hynny cyn pen tri mis, gan ddechrau ar y dyddiad y cafodd y cywiriad ei gyflwyno i'r hawlydd.