Freedom Pop freedompop.com Company continued to charge monthly fee after account cancellation Los Angeles California

My account hasn't been active for months. It was canceled in March 2017.  On May 18th 2017 I requested that Freedom Pop cancel my equipment warranty and refund the policy payment. My policy then was #FPE747E8B8GAD. That was not done. Instead they switched me to CPS. I contacted CPS and they said I need to Freedom Pop.  I was finally able to get the warranty canceled and got a refund of one months insurance charge in August 2017.  

When talking to Freedom Pop support, they confirmed that my account was not active and I shouldn't have been charged for the warranty.  I thought it was over.  Since then they have charged me for two more months of service, again after the account was canceled in March 2017.  

I was finally able to cancel the account again 10/11/2017, but I have no guarantee that they will not charge my account again, since they have my card on file and have continued to charge it each month.

Their claim is that the account was never canceled even though when I talked to their support, they agreed that the account was not active and I should not be charged.