Customs Refund!!!

I erroneously paid my customs (+/- R470) twice in September 2023. I immediately began the refund process by contacting support and Shein. I then called countless times to be issued with a refund form as the service consultant picked up the duplicate payment using my order no.. The customs payments were made via the Buffalo website which gives a prompt to “Pay Now” as soon as you click the link in the email. I explained this countless times to the refunds lady, Palesa Leotlela, and she kept on asking for a proof of payment. I explained that there’s no proof of payment for online transactions, she kept on probing and probing. I furnished proof using my bank statement as that’s the only way. To this day, I have not received a refund and have even stopped emailing and calling because it’s pointless. Terrible customer service.