Refund

I have had a terrible experience with kfc & it's starting to **** me off now that I have to run after my own money. I have had 3 canceled orders in the month of June & 1 short order. All my calls to kfc customer care has been unreturned I have wasted even more money by calling them all the time. 2 of the orders that were canceled were paid part vouchers & EFT I was told by customer care on numerous occasions they don't issue vouchers anymore therefore all my refunds will be done via EFT within 7-14 days (Shloni in the delivery team) assured me all refunds due would be paid by month end June it's almost been a month now and still nothing. 2 weeks ago I received a email saying here's a R200 voucher when I wanted to use it it was invalid called customer care they said i had been issued a voucher that had been used in 2023 already. Now where the hell did kfc scratch that voucher out all of a sudden an then on top of it it had already been used. Every time I call I receive the same answer they are investing, what the hell is their to investigate? Kfc issued me a used voucher not the other way around the investigation has nothing to do with me. I have had it up to here with kfc Cas***. As quick as you could take my money and vouchers for those orders and short items please return it back to me it does not belong to you...