Nokia 5800 Xpressmusic — Faulty Mobile Instrument

Hi

I have purchased a Nokia 5800 in late Feb this year. There seemed to be some initial problem with the phone's memory because of which I had to go back to the dealer in less than a week of purchase of the phone. In fact, it took me 4 visits over the first 3 weeks to get the issue sorted out.
The phone worked fine for a few months and then again it started showing memory issue - after every SMS it would flash a message saying 'no memory left, close some applications and try again'. With the result that I had to switch off and restart the phone almost 3-4 times every day.
I went back to the dealer, who checked for virus and then since no virus was found, asked me to get software reinstalled at a Nokia Care outlet.
I went to Nokia Care, and after two visits and waiting for over 2 hrs, i got the software reinstalled.
Two days after this was done the memory issue has come up again. I am again having to restart my phone after receiving an SMS or call..

I expect Nokia to make better phones and if I spend close to 20, 000 rupees on a phone, I should not have to keep going back and forth trying to get it fixed.

I would like to get a new instrument to replace this faulty one, at the earliest. Having been a Nokia customer for over 10 years, I certainly expect better from the country's most valuable and trusted brand.

Thanks
Pooja Sehgal