[Resolved]  Prestige Pressure Cooker — washer

i bought a 3l prestige pressure cooker from Big Bazaar, Milan Mall, on dec.1st 2008. within a month's time the washer was lost. they helped me out, but in a couple of days again it fell off. the covering on the whistle also came out. Next time when i went to big bazar they were reluctant to help. nothing was done by them though they lodged the complaint. Never ever saw problems with pressure cooker when it was bought from other stores except for this time when i bought it from big bazaar. Though there was one year guarantee and they should actually have replaced the cooker itself, but they didnt bother