Micromax Q7 — Micromax Q7 multiple malfunctioning

Address:

SAS Nagar, Punjab

I have purchased Micromax Q7 mobile from M/s Rajesh Traders SCO 1008 (Ist floor)
Sec.22-B, Opp. Bus Stand Chd. Mob.no. [protected]
The cell details are as follows:
Model: Q7
M_IMEI: [protected]
S_IMEI: [protected]
Bill No. : 7762
Date of Purchase: 31.07.2010
Address : Ravinder Kumar Sharma
K.No. 443 Ph-2 Mohali
It was having following problems:

1) Automatically switch OFF/ ON twice or thrice a day
2) Opera mini browser problem while operating

I submitted it for repair (Job Card No. 576638) on Date 14.08.2010 at:
X-ZONE MICROMAX CHECK POINT,
824, ABOVE INDIAN BANK, NAC, MANIMAJRA,
CHANDIGARH.
They returned it me on 27.08.2010 and said it is repaired.

But after 2 days the same problem persists in this in additional the following:

1) Automatically switch OFF/ ON twice or thrice a day
2) Opera mini browser problem while operating
3) Not reading memory card after switch off
4) Switches off while customizing profiles.

Please help out. My contact No. is [protected]