Don't buy online from Matrix Warehouse

I bought a part through the online store and have been struggling for 2 months to have the faulty part returned. I was well within the 30 day return period when requesting the return but had ended up having to drive all the way to Midrand to return the part myself. I've now lost the customer I needed the part for and had to pay back their money losing business and I have still not received any news on a replacement part or refund. Pathetic!!