Thanks for the Help.
Yeah I used to have data plan and 3G connection, but have cancel it because somehow even I did not use it for online application it also go up to a lot of charges.
Have read the forum, could be application running in the background that cause this.
Any way to download applications to G-Phone (HTC Dream) without data plan and 3G connection?
Any way to proper disable usage of data plan and 3G connection when not in use?
If there is a way to control and monitor 3G connection and data usage, I would re-apply back my data plan and 3G connection.