Rain cancellation is a problem

I have been using rain for a few months. A few days before the end of October, I cancelled my month to month contract with them via the rain App. No one called me so on Monday the 1st of November I called the call centre and I spoke to a lady who said she can see my cancellation and it's sitting with the cancellation team and someone from the cancellation team will call me. However no one has called me since I cancelled I stead, my profile is still active on their App it even says my next invoice is die on the 1st of December. How many times should I request for everything to be deactivated or cancelled?