Rim — undeu deduction of money from my account

I, have been using relince india mobile since last 4 years, but it is from march 2008 that rim is dedudectin a sum of amoun without informin tha why is the deduction for.every time ther is a massage on my phone that your acount is in use, if you don't have duplicte account please call custmor care . for the last 15 days i have been trying to talk to a cutmor care reprentative but i failed to do so because i call on *369 a busy tone is ther on my mobile .