Lenovo — Lenovo Mobile Servicing Centre

Address:	Paschim Medinipur, West Bengal, 721102
Website:	www.lenovo.com

I have purchased a Lenovo smartphone Model No.-Vibe P1m from flipkart, after using 1 month it has operating system issue.Then I went to the nearest Lenovo smartphone servicing centre named as Global IT Net.They just said me the phone has operating system issue and it only can be repaired by cash(though I show them my cash memo and warranty card).They asked me to pay 250/- for the servicing.I agreed.But now it's 6 days over, I visited 4-5 times, still they did not repair my phone and they don't want to return back my phone, they are saying that if I take back my phone I have to pay them 150/- without any reason.Plz help me.