Unreliable the second time around

They really have no idea what they are doing. In 2020 I had worst shopping experience, I`ve ever had. Bought a gas heater online, only to find out that they no longer had stock, decided to wait for new stock. "New" stock arrives I go to pick it up after a month of waiting. Get home with my "new" heater only to find out that it had been used, called the call center and went back the next day to return it. The store is 20km from where I live and it was a huge inconvenience to go back to return a heater that had already been used after buying a "new" one online, Kat the electronics manager was not accountable and I couldn`t escalate my grief as they don`t even have a store manager. Two weeks ago again they sold me an item, I waited longer to receive than initially communicated, only to be contacted a week later and told they no longer have stock and a refund would be processed. They clearly have a ****py site that doesn`t work because this is happening again.