I am being charged for nothing

I did 2 online transaction on May 19 & May 24 which was around 32k cost but i got charged almost 2.8k tax with several names i called the helpline the helpline person said he can’t do anything he can inly guide so i asked him to guide me how to solve this he said mail it to mcb bank so i did it so i got text message from mcb after 2 days we are looking into it then after 2 to 3 days they rejected my request & said we can’t give back your moneu after that i haven’t used mcb till my client from us sent me money in my account which i didn’t moved to other bank after that i received money from my friend in my account as it increases nearly one lac .. 2 days back i did mobile load to my father mobile no & on this transaction i got charged 1955