Unhelpful staff

On Monday afternoon went to the Fix in the glen mall to return an item, I was told they couldn’t process it because they don’t have money, told me I could come back later because then they might have money, so I did that walked around the mall and about 40mins later went back and they still didn’t have money, two days later I went back to see if they could do the exchange and I was told the system was offline, I then questioned how it was possible to help others but the system was offline, their next excuse was again they had no money to process my exchange, so I asked what other options I had, they said they can transfer it onto a credit card, I then had to wait 10 minutes for someone to come do the exchange because only one staff member is allowed to do that apparently, only once everything was processed did they then give me the ts&cs to say that the money wouldn’t reflect now and I have to wait 2-3 days for it to show, staff was every unprofessional and weren’t willing to help, showed no remorse for the inconvenience as they wasted my time, and I still walked out unhappy with the result. If we as customers have to follow a return policy why don’t you as a store keep up with it too, how do you not have money available for more than 2 days when in your return policy it states cash refunds for debit card transactions.