Unfair customer treatment

Went in store to complete my online application. Was helped by Kelly. Went in a few days later to sign the contract and was told by the manager that I cannot have the lounge suite delivered to my mother’s address. I told them I don’t have any form of transport and I’m not asking them to change my address on the system. They should just change the delivery address. I’m being charged R500 for delivery but I cannot have it delivered to another address. The manager said I can ask the delivery driver to drop it at my mom’s place and pay the driver an extra cost. When I’m already being charged R500. Called head office and they said I should send a proof of address through for the delivered address. Sent it to Tokai and was told by Kelly that she cannot change the address as the contract is already printed. She then proceeded to say her head of finance manager had said that I cannot purchase it as a gift for my mother and for it to be delivered at her address. I then said they should pay my deposit back and cancel the contract because up to now it’s just been pathetic service. Kelly then called me back to say I should come in store AGAIN with my receipt and they’ll refund my money which could take a few days. Complete and utter unfair customer treatment. I’ve asked for time off from work to go to the store and abide by their rules. I’ve spent hundreds of rands with Ubers too. Now I’m asked to go instore AGAIN to get my own money back. This matter will be take to the Ombud next