Cypress Bay Solutions ACH Processing Misinformed about charges to my bank account Carrollton Texas

I was charged $87 from my bank account by this company without my permission. An additional $487 they "tried" to charge towards my account didn't go thru. I was then called by the seller's superior, whom demanded payment. I said, No, because I wasn't aware of the charges to my bank account in the first place. She then states that it was explained in the contract I signed, which I had never viewed nor signed. I hung up. She calls back and I rejected it to go to voicemail. She then threatens me with court talk, additional charges and sending,(really selling it) to collections so it can go against my credit. I just wouldn't advise anyone to EVER do business with this company nor work for them!