cash net usa taking money out of my acccout when i have already paid there money back Internet, Internet

i am filing the report because i got a payday loan from cash net usa and they gave me the money and deposit in my back account. and when i check my bank account there was the deposit of 600.00 from three different company and i didn't tell them to use three different company i just want one payday loan of 300.00. and i contacted them and they said there is nothing they can do. and i tired contacted the people and the phone just rings and rings no one answers. cause cash net said they will not refund our that money. so no we have to close our bank account to stop them from taking money out of account. cause were are not authorize that money to be taking out of our account. so i hope you can help me here. i just want justice to this people.