If your decision has not been overturned on either a Tier 1 or Tier 2 review, and you disagree with the decision, you have the right to make a complaint to the Welsh Government.
Os nad yw eich penderfyniad wedi'i wrthdroi ar adolygiad Haen 1 neu Haen 2, a'ch bod yn anghytuno â'r penderfyniad, mae gennych yr hawl i wneud cwyn i Lywodraeth Cymru.