Amazon.com — unauthorized credit card charges.

Address:

27406

There's a charge on my credit card each month from this company that i don not know what it is for, 73700aq3d2300ygja is the number showing up on my bank statement, please help. This has happened on several different months, so i would like to be reimbursed for all the month charges that has been made on my card. Please let me know if this company is legal and why they would be making charges on my card. I thought amazon was suppose to be a good company and very reliable.