Review Double and Triple charge on Ticket

I purchased an Aero ticket online and was debited twice and thrice respectively. I complained to GTB, bc this the bank ATM card that I used to purchase the tickets. GTB, according to them sent several emails to Aero, Aero did not reply, I wrote a letter to Aero in their Abuja Hilton office, Aero said that, there is nothing can be done, that, I should go back to the Bank.