One month "two" long

I purchased items on spree during the Black Friday hype. I received the items, however the dress was small and the shoes were ridiculously big. Upon receiving them on th 29th Nov, i immediately logged for return. The items were then collected from my workplace on the 30th November. The return was only logged on their side on th 7/8th December after i sent an email enquiring on why it still reflects as "to be collected." From then onwards i have tried to contact via email- no response, via calls- when they finally do answer- i am out of airtime. I was lucky on the 21st December when i finally got through to them and I spoke to Mfundo( stand to be corrected) who then ghave me a refund reference number (921228) and said they have my banking details, he is sending an email to his finance department and it should be in my account in the next 3 working days. It's the 3rd Of January and i have not received a cent. When i check on the app, it now says "We have processed your return and refunded the amount paid". My question is where? I refuse to call you guys again, i have wasted enough airtime on you- i might end up spending the amount owed to me just on airtime.

Order number is ********** 21.