Card Declined for no Reason

Fnb is really disappointing me these days, first it is the long queues ,then the ebucks rules change to suit you.<br> <br> I went to Makro to day to purchase a Play station for my son, When i tried paying with my Credit Card it was declined although I knew I had cash. This really is not good, as I now had to use my Standard bank card, which means i loose out on the Ebucks I could have earned.<br> <br>