Indian Overseas Bank — Debit the extra amount from via paying through ATM

Address:

636455

Account Holder Name - Srinivas K My BANK Account Number[protected] Branch Code - 16666 Branch Name - Omalur Today I booked two bus tickets in TNSTC (Tamilnadu State Transport Corporation). One from Chennai to Salem and Another one from Salem to Chennai, Payment using IOB Debit Card, but actual cost of ticket is Rs. 286 for each Ticket, but you debit Rs. 296 for each ticket from my account. In what related you debit the Extra Rs. 10 for each ticket from my account. I need full clarification. but if I book same ticket from using another bank ATM card they not debit the extra Rs. 10 Amount. This is not happening on first time already I face this problem. Please clarify the issue.