Duplicate deposit that was promised to be refunded

On 07/08/15 2 x cash dep to Damelin on their FNB acc was done on 2 different FNB Branch within 7 minutes. i was on the queue at Carlswald Midrand and asked my sister to try her nearest branch as the funds were supposed to be deposited before 16:00. i paid R5000 at Carlswald Midrand, when i phone my sister i found that she already paid another R5000 at Village at Horison branch. Went back for cancellation, James told me that they need to first confirm the duplicate, because they couldn't get hold of Damelin. i must come on Tuesday with both proof of payments for a refund. 11/08/15, get to the bank, was told that the refund/reversal can only be done the same day. Was send to Anat Buran, he told me that he will confirm with Damelin on 12/08/15 for him to debit their account & refund me - Feedback still to come. Spoke to Mario that i want to log a complaint about misleading information i got on 07/08/15 & he told me that i can do that on the website but it will still come to him. he made calls to damelin & told me to the send the proof & Damelin will refund me while i was told by FNB staff that FNB will refund me. Dudu said FNB doesn't do refunds or reversal. 4 ppl 4 different info.