Adidas South Africa Online Store - No refund to customer over 14 business days as per policy.

I have requested a return with adidas online store as I had purchased items from there and it did not fit me, firstly I went to the adidas store at gateway to do the return and they said I cannot do the return/ refund instore, I need to do it online. I then logged online and requested a return, for two items which I placed in one box:

1.HL1482_250 R349 not been refunded from 30 March 2023. 2. HD6763_250 R549 has been refunded on the 3 April 2023.

The courier picked up my two items on the 27th of March 2023 in one parcel and they refunded me for one item only for R549.00 and to date I did not receive the refund for the item of R349.00, when I called them they said it takes 14 business days for the refund to take place and now it is over 14 business days and the money is still not refunded to my account.

When I called within the past 4 weeks every week to follow up on the refund I was told it will be refunded within 14 days and I should not call back and the case has been referred to a specialised team over 4 weeks. Basically adidas being an international store is robbing clients as they have taken my money and the item I have given them and did not return my refund due to me. This is the first time I had such a traumatic experience from an international store I am shocked and do not know how to go further with this.