Pathetic service. Unreliable purchases

I recently purchased two items from the Samsung store in pavilion. Both items were to be delivered on 30/06/2018 as stated on invoice given by Samsung. Outstanding payment was made the day before delivery. I informed Samsung that the transaction would be successful as I have paid a special clearance fee to release the funds. On the same day they insist both salesman and manager that is impossible. Despite me providing proof. And outright refused to deliver the products as funds were not cleared on their side???? There is no such thing. I phoned their head office. Which stated they received no phone call from pavilion to asses the status of the transaction but on their side it reflects as payment successful and authorised. I informed Samsung pavilion of such and requested delivery on the 30th as planned. They then inform me they cannot deliver as their delivery days to my area were only on Tuesdays and Thursdays. I needed the items urgently as one was a fridge and moving into a new property with refrigerated items waiting for delivery. I again phoned head office who informed me that it was of no problem and informed their driver to deliver the products at the stipulated time and date successfully. Samsung pavilion then apologised. This was of no help. They are clearly *********** in matters regarding finance and accounts. Issuing invoices with correct particulars, delivering services as promised. I am absolutely disgusted with their service. Will NEVER buy from them again. And will discourage anyone from doing so. They also claim to match prices of stores that are not online. I have given them so many advertised items of cheaper prices to match but they outright refused with no reason other than that the competition was too cheap. But also informed me I will lose my assistance with Samsung should something go wrong with the items. I would not be allowed to repair them at a Samsung service centre unless purchased from Samsung directly and not an agent. This I later found out was bull****. Step up or close down Samsung pavilion. You don't know what you are doing.