Customer service useless

I can honestly say homeaffairs has better customer service than this company. I signed up with homechoice and ordered bedding. First the account number I was supposed to pay the money into did'nt work. After a day someone sent me a link to pay via ozpay. That was done. So then I try logging back into my account. I can't log in. So I think my password is wrong and try to reset it. Apparantly my email is'nt in the system. So I called and the lady said I have to email cause she can see my account. I email them. The person explains to me how to reset my password and today I receive my order and I think everything is good and well. So I discover they sent me a double bed duvet cover instead of the queen I ordered. The blanket that came with the order is also not the same as displayed but thats not a big issue to me atleast. Who can assist me in exchanging my order and fixing my account? Preferably someone who actually knows what they are talking about please.