Praise be to Allaah.
If the matter is as you describe, there is no reason why these cards
should not be used, if the purchaser has sufficient funds in his account
to cover the required amount.
And Allaah is the source of strength. May Allaah bless our
Prophet Muhammad and his family and companions, and grant them peace.
Standing Committee for Academic Research and Issuing Fatwaas.
Fataawaa al-Lajnah al-Daa’imah, 13/527