Disservice from Levi's not processing my refund for 2 orders placed 4 December 2019.

I paid for more than 5 orders in December 04 2019 of which 2 were never delivered. I enquired and got told that it was an error on their side, demanded my refund sending acc details and proof of payment. Had to do this more than 3 times already and till today i have not received my refund R400 + R1120! From Levi's _ contact person: Agmad Kriel