Cancel debit card before you cancel dish services

They love to take money out of your account with out authouation or permission. I found that out the hard way. Ovet 1500. There equipment and some months still in contract. I am going to cancel my debit card this time and it wil not happen again to me. They kept raising the money monthly amount with out telling me. I am supposed to pay 59.99 a month down from 250 pack with hbo and cinimax. Last months bill was 57.00 and this months bill went all the way back to the original amount. They gave me a 5 dollar credit but thats not fixing the amount i have to pay by much. So i am going to just leave them. Always cancel the debit and credit card before you do this. They can take out money even if you arent allowing them to with contract.