Instant Checkmate Illegal charging on paypal account Nationwide

I initially used Instant Checkmate for the free one month trial and cancelled soon after I registered.  They charged my paypal account for 2 months before I caught the fact that they were charging my account.  I immediately called them and told them about my cancellation.  This was 15 months ago.  Yesterday, I got a notice from Paypal that Instant Checkmate had made an approved withdrawal from my account.  I immediately called Paypal, and they won't do anything about the withdrawal, they said I have to contact the company.  I contacted the company and am still waiting for a refund of, not only one month but two months of illegal withdrawals from my paypal account. If you cancel your subscription with Instant Checkmate, it does not mean they will not in the future try to charge your credit card or paypal account.  BE Careful!