Wrong item delivered, slow returns process

Hi I placed an order for some networking equipment, which was partially delivered on 24 Aug 2021 (order number: 169662). One box was missing, which thankfully was delivered later the same day. It wasn't the couriers fault either, as the initial waybill was for two boxes, yet the order contained three boxes total. Adding to this, one of the items (a network cabinet) was incorrect. It was advertised as including a fan, brush panel, multiplug, and cabinet *****s. However, the item delivered excluded all of that and was just the cabinet. After much back and forth, Geewiz informed me on Friday 27 Aug 2021 that this pack was no longer in stock. This meant I either live with the falsely advertised purchase or return it for a refund. I opted for a refund as larger cabinets were similarly priced. A bit slow to resolve but it seems the supplier was largely to blame here, so all good so far. Here's where things went wrong; the return was finally collected by Geewiz on the following Thursday 2 Sep 2021. No idea why the delay. This leads to the main reason for my complaint, the refund has still not been issued. We are now approaching 3weeks since the incorrect item was delivered, and it still hasn't been rectified. Geewiz has had possession of the item for a week but has not issued a refund. I don't care if the, "return has not been approved yet by the supplier". I bought from Geewiz, who you buy from is your problem.

I also have to initiate contact in order to receive feedback, and frankly, I'm tired of nagging. Please sort this out promptly.