Posted about a week ago that I bought a 13" MBP 128GB BTO 16GB Ram and 2.9Ghz Processor and I used my BARCLAYS CARD with Apple Rewards which was delivered yesterday. After consulting with this forum, I was advised that I should return my purchase for a larger HD space, so I went ahead and purchased a 13" MBP 256GB BTO 16GB ram and scrapped the processor upgrade on my Citi Credit card (did not have the credit limit on my Barclays but want to use the Barclays to pay for my machine). I was told on the phone during the 2nd purchase that I am able to just go and return the first computer, get the credit back on my Barclays card (0 interest for 18 months) and then take the 2nd computer to the store and do a return on the spot and move the charges from my Citi card to my Barclays card. After seeing the back to school promo today, I went ahead and called Apple Cust Service to have the pair of headphones shipped to my account. When I walked her through my scenario, she said that in order to get the full refund for my BTO, I would have to return both computers and then purchase a 3rd computer using the Barclays card because BTO orders will not refund until they hit the Apple Warehouse. Has anyone had any success changing credit cards on a BTO order without having to reorder the whole machine? I would prefer to not have to order a 3rd machine but instead just return the first, then return the 2nd one and repurchase on the spot with my Barclays card. TL/DR: Bought computer 1 on Barclays (not enough HD), Bought upgraded computer 2 on Citi (want to pay for this with Barclays), can you return and repurchase BTO on the spot, or will I need to order yet a 3rd computer.