Bad Service and refund not happening

Bought a power station at Bradlows Boksburg on the 19th of July 2024 which the shop didn't have stock and advised that the warehouse had stock available. Went to the warehouse on the 20th of July to collect but got there after the warehouse was closed.

Phoned the shop the same day to find out and the employee (lady) that answered the phone informed me that earlier on the day she had another customer that she sent to the same warehouse who was told that the is no stock available.

Followed up on Monday (22nd July) and I was told that I my power station is at the warehouse they just needed to double check and make sure . When they got back to me they told me there is no stock and they are not going to be getting more stock.

Now I've asked them for a refund and they asked me to give them my bank confirmation letter and a copy of my ID which was weird because when I made the purchase there were no terms and conditions.

Gave them my ID and the bank confirmation letter of my partners bank account and drivers license copy since the transaction was done using her account and now they are asking us to get an affidavit.

I complained to theirs complaints department last week on the 26th of July about the service and I got a response email that said they will get back to me within 24 hours and I am still waiting.