No Statements received/1GB data added every month!

Since the end of last year I have been receiving 1Gb of data from Autopage every month, even though I had cancelled this at the beginning of last year. My account was fine for a few months and then they started adding on the data. I have phoned 3 times asking them to please stop adding this as I do not want it. I was told they were doing me a \Favour"because i went over my data"