No communication and the time I have to wait

I purchased a twisp set at twisp Musgrave on Sunday 21/06/2015 as a gift. I returned it in less than an hour due to it being the wrong one(it was the old twisp and not the new twisp) I was told that I couldn't exchange it,after seeing this displayed at the out let.<br> If you are not happy with your purchase, please return the product within 10 days for a full refund provided the item is in its original condition and original packaging. <br> <br> I said I felt it was unfair and wanted to speak to a manger ,I was told they not there she would call and find out what can be done.I was told they would eft the funds into my account on Friday the 26/06/205.I NEED TO WAIT 1 WEEK after spending R1100 in the store/outlet. Until now I haven't received an sms stating the funds will be eft into my account .All I want to do is change it for the new twisp .The lady who attended to me did take the item back . when will I receive my money as Friday has come and gone ?