Issue for PO is to do with split payments. If card 1 goes through but later cards fail the transaction cannot be easily cancelled and the funds returned to the successful card.
They are assuming you have no backup payment, so it is easier to just say no. The split payments only tend to be those of us doing gebits so it is easy to just day 'No gebits'.
Originally Posted by
mensday
thinking that split transactions are causing issues rather than the type of card. OVs do not work at any of POs around me (for the last few weeks) when trying to buy $998.40. However, when I tried $495 today the OV worked.