Stuffed up again

I am really getting sick and tired of this same issue every month. I have 2 alarm contracts. One recently cancelled and you tried to put a debit order through again. The second is a stuff up because you never updated my details when j changed bank account so we had an arrangement to pay a certain amount till ot was caught up. For the 3rd month now you just put through what ever you want. How hard is it to stick to what you people say. Call me to sort this out if you want your money and stop trying to charge me for a cancelled contract as well. Called on ***