Takealot - refund taking to long

I have been always a regular shopper at Takealot. I purchased two car tires online in November last year on delivery i only received one. When i questioned it with Takealot they advised the mistake was at the warehouse and will do a replacement for a another. Later after i followed up about my replacement delivery i was advised that the supplier is out of stock. So i requested Takealot to please collect the one tire that i received and please refund my credit card with full amount that i paid for two(2) tires of R2482. So on the 17/12/2018 i was only refunded R1241. Till today i have not received another refund of R1241 for the tire that i did not received. I have queried this several times and called as well. Agents just give me different answer feedback is poor from customer care as well. I also checked and spoke to FNB credit card division they have confirmed that only one refund of R1241 was done and there is no pending amounts.

Please can i have a solution on this. Clearly you can see that you have taken my money and not refunded me in full.

Christopher James order reference : ********** 7