ZTE USA Service Center - Corporate office in Grapevine - 4055 Corporate Dr #400, USA

I bought a ZTE Axon7 at BestBuy about 2 years ago, cheaper than Amazon, and liked the Smartphone tho it did Not have a battery cover. BestBuy said, "We only service iPhones we sell." Called here for verbal or written directions on how to dismantle the cellphone to replace the worn-out battery. Told, "That would void the warranty. Send it to us for $79." Instead, i found a cellphone repair store to do it for only $40, after buying a battery from Amazon. ZTE website offered me the new $149 Blade Max View with "pie" Android OS. So ordered one with my AX card, but after More than a week!, ZTE had Still Not processed my AX credit card!! Wish all Smartphones, even ZTE and Nokia's had easy battery covers, Much better Customer Service, and under $200 prices! iwish!