The TfW website advised people to renew or apply online and told those who could not to approach their local councils for help in doing so.
Dywedodd gwefan Trafnidiaeth Cymru fod yn rhaid i bobl adnewyddu neu ymgeisio ar-lein, gan nodi dylai’r rhai na allan nhw wneud hyn gysylltu â’u cynghorau lleol i gael help.