Horrible service. Oversells stock they don't have

If there's a company I would confidently rate 0 if it was possible would be this one. Monday I called their Thulamahashe branch to enquire if they have Mamba cement in stock and their manager said they have the stock and I must come and buy and the will deliver the same day or the next day. Fast forward to Wednesday my builder calls to tell me they have not delivered the cement. I called them to find out what the issue is and I was told I am on a waiting list the stock that was there was for customers that paid before the 8th and now if they receive the delivery they have to service the people who bought first. I drove there found the manager on the phone and when we finally spoke I asked why she **** about the availability of stock knowing she owes a lot of customers cement. She tried to justify it by blaming the workers while she knew she's the one who said I can buy they have stock. I requested a full refund and she said the store doesn't give refunds. We argued because they were at fault and I need cement. It was either I get my cement or refund. She gave me a refund request page to fill out and they required a proof of account and *** copy and they gave me an email address that doesn't exist. I sent it to their WhatsApp number and the lady requested my copy of the receipt whilst they had the original. I told them I required a copy of the receipt and proof of the refund request and that's when she refused and said I can take my receipt copy and they will process my refund and I will get my money today. Today I called them after 3 because my money was not in and Gmail confirmed the email they gave me doesn't exist and they told me to wait until 4:30 and even now my money is not in my account. I called their central office number since 3 and no one picks up, the automated message keeps saying someone will pick up. This is the worst hardware I ever had to deal with. Other hardware's are honest when they have delivery issues but this one prioritises making money over their customers. And to add to this their driver delivered 2 bags of damaged cement the first time and refused to take it back.