Axis Bank — unknown credit charges

Address:

Kolhapur, Maharashtra, 416502

I have platinum mastercard of axis bank. I have been using this card since last year. I had deposited 10000 rs when i opened an account, after that, i have used this account for few months then, but from last two months i haven't used this account in any way neither from netbanking nor from atm but the bank has debited the amount of 500rs as consolidation charges from my account. I am not getting why the hell this amount is getting debited almost every month even if i am not using this account. Please tell me what is this consolidation charges and why it is charged on my account every month, and if this is the standard procedure of axis bank then let me know the procedure to close this account. I am fed up of this # now.
I have attached screenshots of my whole statement which shows that i have been charged a total amount of 2035 rs till now as consolidation charges. And i cant understand that why the consolidation charge is less than 50 rs sometimes and other times it is more than 500rs? Please let me know why is this happening to me. And one more thing one of my friends have the same account that i have because of we both opened axis account at the same time with same first balance which was rs 10000, but he never gets charged any consolidation charges on his account but i get charged the same for every month.