Refund Refused / Poor Customer Service

I went to Builder's Express (the Crescent) in Umhlanga, Durban today (26.05.2021) to return a wooden toilet seat that I bought on 05.05.2021. The paint around the pan lid was out and the wood was swelling and untidy. It was an inconvenience to me due to the defective product (Builder's Express Brand), and to my dismay, when I got to the Customer Services and spoke to a staff member, named Mitesh and thereafter, Sher, who stated that he was the Manager. They told me that they would have to send the product to their Supplier, as it was a defective product, for them to examine the item, and then get back to Builders Express and then they will call me. I then requested a refund, it was a defective product and the issue is between the Supplier and Builders Express, and they needed to sort it out between themselves. They adamantly refused to give me a refund, although I showed them the recipet that the product was purchased on 05.05.2021 and I was returning it on the 26.05.2021, which was not even 30 days, although the product had a 2 year guarantee. When I requested to see a Manager, Sher stated that he was the Manager. I am totally dissatisfied with their services, as I am a builder and a regular Customer who purchased for thousands of rands at the store. I went to the store just before 12 midday and later at 3.26 pm I got a call from Mitesh stating that I must come to pick up my refund. I was shocked and very disturbed that customers can be treated in this manner. Who was going to reimburse me for the fuel and the time that I had spent going to the store for its own defective product? Shop Tel. ***/ *** website www.builders.co.za