debit order

I gave teljoy my date when they should debit my account somehow they don't stick to this and debit their own days so they put me in arrears and threaten me that they will take the unit back I mean really how do you as a business work then so if you at fault they can quickly call you and say we will fetch our unit but they are wrong they cant even say look lets make a better arrangement nothing just treat clients like **** that we are just take our money they make mistakes I have to pay that is *******.