I purchased an isa190 mobile from geekbuying for £110 which arrived on the 2 august 2013 and on arrival found it would not receive a signal from any network (the first identical phone isa190 I purchased in July is working perfectly) . after 3 months of continuous emails to get this resolved they said to return the phone and I would get a refund, this I have done two weeks ago at futher expense of £16 to have it returned tracking no:RU146635201GB which arrived in china on the 20oct 2013, this package was tried to be delivered on the 22oct 2013 before 16.35 and was unsuccessful and now I have been informed that if it not collected it will be returned to sender, this is defiantly a company that should be made aware to internet buyers so they can avoid the hassle I have suffered, here is their address: geekbuying .com contact : zhezhang01 5th, floor yinhai, no75 zhenhua road, futain district Shenzhen Guangdong CHINA post code: 518031 phone no: [protected]