Online and store refund

In August 2022 I purchased online, a day later my order was on hold due to stock unavailability I then canceled the order and requested the money to be refunded. For weeks of inquiry being told they can see the refund task status pending at the end of a long dragging follow up I was told that they never charged the items from the account but upon inquiries at their stores the agents would keep saying wait 48hrs and it will be refunded.

Now on the 30th October 2022 I was double charged on one of the items and now I am far from the store for me to go back to that specific store for a refund into their store account. I'm so frustrated cause I'm being billed for things I do not have in my possession. 😭😭