BT 5310 (Samsung Corby pro)
SIM card contacts not visible java plugin crashed

I purchased samsung corby pro (bt5310) one month back and i have started to face some really ridiculous problems.

1. I am not able to see my contacts stored in SIM card. It shows that I have 200 contacts in memory status but I can't see them.

2. I am not able to surf internet too, as it asks me too install java plugins. When I try installing it through the provided link, I am not able to do so.

Please suggest what to do. I am not able to reach their customer care no as the IVRS system is really pathetic.

Thanks