Not refunded for non delivered order

On the 30th of October I ordered online for me & colleagues at around 21:30. Online service directed me to Corlett drive thru as the Rosebank store was not delivering at that time. The electronic payment was accepted & got confirmation that my order will be delivered in the next 35 minutes. I waited for an order & it never came. Called the number I was provided with & the line was now closed as it was after 22:00. Went back online to lay a complaint. Next morning the call center calls to confirm the complain & the order. Was told everything was on the system including my payment. Was advised a store manager was to call me to resolve the issue & refund me. A lady by the name Linda Garayi called & made excuses about how their system must have been malfunctioning & was not supposed to allow me to order because they don’t deliver after 21:00. Asked for my banking details & said she’s sending it through to their finance department for my refund. No word from Linda after that. A few days later, service center agent calls to confirm if matter was resolved. Told her I haven’t received my refund yet. She advised it takes 7 to 10 working days to process. I understood & patiently waited. 2 weeks later I sent Linda an email which she gladly ignored until I called the store a few days ago & managed to speak to her. She gave me another sob story of how she’s still waiting on the accounts Department to send her proof that money was paid back to my account & she will send confirmation. I honestly do not understand why such a big store can ***** it’s customers up like that for such a small amount of money. I fail to understand why it would take a store that makes millions over a month to refund such a small amount. I still remain without my refund or the actual order & certainly no answers from the store. All I keep getting is bull**** of excuses