Sales manager laughed at my situation

I'm on the phone to the company slumberz (David -sales manager) trying to organise my delivery for my bed as I've just moved addresses. My card is registered to my old address still. So to confirm I'm the bank account holder they put a refund back into my account. But I've called my bank and they have firmly stated there has been NO refund. I recorded this conversation between my bank and myself and emailed David with the proof of the conversation between myself and my banker. Which I've also offered other proofs of address ie... Inland revenue letter with my new address on.....passport.... Drivers license. Even to transfer ?10 to their account from my PayPal just to confirm who I say I am. In order to get my bed before the weekend as I've been sleeping on the floor and its killing me. It did NOT state this on their website about information they would need if the addresses are different. Now I'm stuck without a bed for even longer and not before the weekend, being laughed at over the phone and felt belittled. If I had the money I would cancel the order but I can't afford to. I will not be using them again!