I have no idea how a charge for $19.95 was taken from my bank account. I am very worried, further more I have no clue how they obtained my banking info. This is theft and fraud and I need to know how to stop this and how to get my money refunded

There have been two unauthorized debits of $19.95 to my bank account from INT*IDPROTECT. I cannot get anyone to answer the 800 number provided by my bank. I am having to close my bank account to stop these charges and have no way of getting my money back. I have no idea what this company is or how they got my bank account information.
Dianne Rombs