Not returning my funds

This is not mud slinging, just you as the consumer need to know the following:<br> I have purchased a computer program from Incredible connection returned it as it was not beneficial to my needs.I returned the program to them on Saturday the 14 Feb 2015, they placed the money back on my card(my i add i paid cash) as they did not have the funds in the till.On Wednesday the 18th i contacted Incredible connection helpdesk to enquire why it is taking so long to return my funds.I was give a *** and they promised to let me know within 24hrs. i mentioned in the telephone conversation that they so happily record that they are earning interest off money that was legally mine. As the product was returned and my money was not. On Thursday the 19th i was contacted by the manger of the branch where is purchased the product. I was informed that it will take 10 days to return my funds.I have returned product to Woolworths, they are with ABSA, takes 24hrs with Edgards they take 24hrs they are with FNB.I phoned Nedbank they say no more then 5days. So who is at fault? well apparently me, for trusting them with returning my money. PS this is the second time it happend to me. Insist on cash guys!