One Cart's Mess up

So disgusted with Game and one cart I ordered air fryer from Game by one cart ,the order was processed and I received a time slot for today , I get an sms to say its shopped I even get a Sms saying who my driver is , I don’t get any correspondence I don’t any messages to say my order has been cancelled I call to follow up on my order and the lady says its been cancelled due to no stock , firstly that is a lie, I call game Rosebank and they advise me that they have the air fryer in stock. I called one cart back and they say it’s a technical error and they put the money back into my wallet???? Why are they not putting it back into the account they took it out from, A big reputable store like game cannot give their clients what they see , I had the exact same problem with Clicks who gave me the Item for the price that was advertised, I will never use game or One cart again !!!! absolutely disgusted imagine the client cannot get the product!!!!