Vodafone — deduction of main balance from 2 of my sim [protected] and [protected]

Sim number [protected] has -213/- and sim number [protected] has -114/- as main balance. I have not use nor suscribed for any roaming services. On both sims i am recharging with package offers all the time. But i am seeing the main balances as negative.
Yesterday i received a msg from vodaphone by saying rental charge of 99/- has been deducted from [protected], and the main balance has been deducted futher to -213/-.
Need correction for both the numbers