Awaiting Refund From Failed Online Order

Dont expect a reply from this as I havent had a response from my previous complaints. Placed an order via the KFC app on the 15th of October, around 7:30pm, money came off my account but the app said that the order has failed and a refund request initiated. Waited a week, no refund. Wrote to the complaints department, received a call promising a refund, still nothing. complained again a week later via the same portal, and not even a phone call. Not even buying from KFC anymore.