If the repair is not urgent and you need to re-arrange the appointment, you will have the option to do this via your text/e-mail appointment message.
Os nad yw'r atgyweiriad yn un brys ac os oes angen i chi aildrefnu'r apwyntiad, gallwch ddewis gwneud hyn drwy eich neges destun/e-bost am yr apwyntiad.