Micromax — Tablet working properly

Address:	Gurgaon, Haryana
Website:	www.micromax.com

I purchased a Micromax tab P410i 25/9/2014 . Till the today it get serviced 5 times. Every time service center give back it to me after 1 month. 3 time its IMEI number get changed when i asked the reason they told me it is replaced set. Recently on 13/8/2015 submit it service center and collect back on 18/9/2015. At service center i check it its working but due to low battery got switch off. after charging it sufficient time and after lots of try it switches on but now its touch not working this time. I again submit it to center same day. its warranty end on 25/9/15. in last 12 months i used it hardly 7-8 months and 4-5 months it was at service center. Every time collected data i lost and re collect every time. Due to bad service and worst quality of product i not only wast my time and money but feel cheated so please suggest me what should i do now? I get frustrated with this and dont want to continue any more.