Cancel my Contract Immediately!!!!!!

I am beyond the point of being upset with a company that I have been extremely loyal to for the past 12 years. I’ve never missed a payment and have taken Out multiple contracts but this is absolutely pathetic service that I have received. You guys upgraded a contract that was supposed to expire on your own I’ve called to cancel on numerous occasions. The last straw is that after my last call on September 1st I was told it will all be sorted and my contract will be finalized and cancelled but when calling this morning I find out that it’s been upgraded once again to an even higher package and the upgrade was completed on September 1st when I cancelled it. If this is not sorted out by tomorrow I will withdraw all my contracts and put stop to my bank account so that I never have to deal with you again! Cancel the flippen contract immediately!!!!!!!