improved the LTT higher rate refund form by reducing the number of questions, simplifying the language used, and adding help text to provide clarity in complex areas
gwella'r ffurflen ad-daliad cyfraddau uwch TTT drwy leihau nifer y cwestiynau, symleiddio'r iaith a ddefnyddir, ac ychwanegu testun cymorth er mwyn egluro meysydd cymhleth