Out of stock - still charges me, no refund

on the 2nd of December i purchased a few items on the Mr Price app. i requested it to be delivered to my closest store, which was Bayside Mall.<br> Before delivery i was notified that one of the items were out of stock, which was picked up during the packing of my order, but i will however be refunded for this.<br> a few days passed and i still had no refund. So, after i went to collect my order from Bayside, i opened it in store only to find that they had invoiced me for the item and it was not in the bag - i knew this would happen. So, luckily the manager was present and tried to also contact customer care on my behalf. in between all this i phoned customer care several times just to be told that i will get my refund, the finance department has been notified.<br> Just now i received an email that i will not be refunded because the \finance department"has picked up that all the items were delivered... YES THE INVOICE SAYS ITS DELIVERED BUT IT WAS NOT IN THE BAG!! THE ITEM IS OUT OF STOCK - CAN YOU NOT PICK THAT UP TOO?!<br> Can someone just do their job? i am tired of waiting. the fact that nothing is being done frustrates me! please refund me"