Sprint Stole money from my bank account. I do not have an account. Colorado Springs Colorado

My son had an account with sprint.  I made a few payments online for him.  He had a dispute with Sprint over service so he cancelled his acount and switched  carriers.  Well about three months later they just picked a card out of his account and charged the whole amount they said he owed.  Guess what?  It was my card they charged.  I am not the account owner, it is not my debt.  Even so what they did is still illegal if they charged his card.  It costed me to be over $2000 overdrafted in my bank account.  I am now in the process of getting a police report and I am going to sue Sprint.  I am going to persue felony charges for whoever authorized this payment to go through.  Someone is going to pay.  This has caused me serious finanancial hardship.  I had to call everyone that I have written checks to to explain what happened.  With the embarrasement of that and the anguish combined this is total BS.