Very frustrated customer who tried to do everything correct as to it's employees instructions at the store. First hiccup came when I submitted all my phones to the store to trade in and wasn't called till 2.5 weeks later stating that they couldn't return my ipad mini and that I would have to return it myself. Well when I tried to do it I couldn't because it was out of the 14 day period for trading in devices. Went to the store to try and get it resolved and no one can figure out what happened but they ended up saying they would just give me a $200 statement credit and that I could sell the ipad to make up for the lost amount. Fast forward a couple of weeks later and I finally receive my ETF refund and it's not even close to the full amount of the other two devices! I tried to call in to the support and wouldn't you know that they aren't open on the weekends. All I can say is T-Mobile's customer service is laughable and it is apparent that the ETF refund process is convoluted on purpose so that they can deny you on a technicality. I would not recommend that you switch to T-Mobile if you want your full ETF refund that they promise you.