Nokia — manufacturing defect in N97 mini

Address:

West Delhi, Delhi

Hi,

I purchased Nokia N97 Mini on 27th Jun 2010 from Nokia Priority Dealer , Multiline Dwarka, with IMEI-[protected].
Within 1 month I started facing some serious manufacturing defects in my phone, which I reported twice to Nokia Care Centre in Dwarka Sec 6 but in Vain, both the times girls sitting there make me wait for over 3-4 hours and post that say that its been cleaned up and fine.
I work in a telecom company myself and trust I know that its not worth even talking.
Defects which I could figure out are -
- Problem in microphone, ppl on the other side of the phone hardly hears complete sentences from me, and every time I need to repeat over and over.
- On 8th Sep for entire day, it was charging itself without any wires connected, sounds weird but I took the videoshot of it in morning and evening (attached as continuous shots from video which is already shared with Nokia, capture1, capture2, capture3)
- On 19th Sep, though the phone has option of going on stand by in 1 min, it dint somehow and was on light mode half of the day, when i noticed I switched it on and off, only then it went back on standby, again without leaving anything on chances I took videoshot (sent to nokia already, cannot attach here)

Apart from this , phone is dead slow with only half the load, it hangs at times to an extent that I need to take out battery to switch it on.
I have now no clue what to do, I cannot speak with this phone and cannot throw it away too.