Bonitas refusing to pay me back my money

I requested a claim from Bonitas after there was a double payment made on the policy. The guy who assisted me told me the payment will be made in 10 working days, on the 9th day i called wanted to find out how far was the refund process was then told the refund will be made the following day or latest in 2 days. 3 days after the set date i called Bonitas i was on hold for 30 minutes until they came back to me and told me i need to go to the police station to make an affidavit for my money to be paid back. I explained to the guy how what they are doing is an inconvenience to me and asked why was this not communicated to me first time around.

When i set up a debit order with them i didn't have to run around with police stations for affidavit, but now that i have to be paid back my money, the money that i need for my deceased sisters children i am told about affidavits.

The "guy" credit controller who is in charge of my case he couldn't even be bothered about my request he just flat out told me its either i do the affidavit or i can just go ***** myself.

I am yet to receive the medical aid card for the deceased kids i guess i am gonna have to go do an affidavit for that also.