pratik masharu 9898652865 junagadh, respected sir, i bought mi4i mobile phone of XIOMI company on 14 oct 2015. from amazon website(online) bill no is KABLR5-141777691285354 This mobile had wifi issue so i have submitted to service centre on 15-02-2016 to ahmedabad TVS service centre, FF-3, Kasturi Complex, Judges Bunglow Road, Opp Athithi Dining hall, Bodekdev, Ahmedabad, Gujarat.(XIOMI's authorized service centre) work order no : 890129501. when it iwas repaired with wifi issue but after one day it was not turn on so i again given to same service centre on 08-03-2016 with work number 890141248. when it was repaired with turning on issue there were new fault created of WHITE SPOT on Screen, so i again return to service centre of XIOMI. HETAL PATEL QUARMATEK SERVICE PVT LTD 123/B-1 PHASE 1, NEAR PUSHPAK ESTATE AHMEDABAD and inquiry number is 900001720 on 14 april 2016, till date they have not returned my phone and not giving proper answer on telephone. the telephone number of mi is 18001036286