Irate customer after refund not processed for 2 weeks

0n September the 17th I purchased goods worth circa R3,000 on one cart. Thy didnt have stock of the bulk of the items. Just bodyshop shower gels. No shopper rang for alternatives or anything first issue. Then R2,400 was credited to my wallet. I then immediately requested a refund t my usual bank account. To date on the 29th of September they have not paid me back. I must say I always say Onecart is the worst online store as its always one problem or another. Today they finance people said they will have a meeting on Monday to discuss the unprocessed refunds. Are they using our moneys to gain interest? For 2 weeks surely? Why must they always fail at basic admin.