| Diolch am ymweld â'r gwasanaeth ar-lein credyd treth. |
| Ar hyn o bryd, mae'r safle ar gael yn Saesneg yn unig. |
| Bydd fersiwn Cymraeg o'r safle ar gael yn y dyfodol. |
| Diolch am eich amynedd. |
| Os oes angen mwy o gymorth arnoch, cysylltwch â'r ddesg gymorth. |
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| Currently the site is only available in English. |
| A Welsh version of the site will be available in the future. |
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