Refund of double payment

I would like to thank FNB for the speed in which they solved my problem with a double payment. A payment was done on a speedpoint at Edgars. According to Edgars it was declined but I received an SMS saying the money is reserved for the purchase. They said I need to pay for the second time. I phoned FNB afterwards and told them what happened. I received feedback via SMS through the whole process and the money was paid back to me within days. Call ***