Be Careful on Refunds fro Iyanga Motors

I buy spares to the value of just over a R1000, and return an hour later to refund as the spares were not needed. No reversal can be done on my card and I am requested to complete a from and furnish them with a official copy of my banking details. they insist on keeping the spares though. This was 3 days ago, no refund and no response to my mails. Disgusted.