If someone is coming on your behalf, they will need to bring your completed form and evidence with them to show that they are acting for you.
Os oes rhywun yn codi allwedd ar eich rhan, bydd angen iddo/iddi ddod â'ch ffurflen wedi'i chwblhau ynghyd â thystiolaeth i brofi ei fod/bod yn gweithredu ar eich rhan chi.