Shocking and ********* procatices

Several months back PF decided to just debit my account for amounts unknown to me as my debit orders had been up to date, i had to request a reversal at the bank as it had a very negative impact on my account, when inquiring this issue they told me i was in arrears, however this was not the case, I am an employee of the bank i bank with and i was able to check and verify this, based on this i told them to cancel my account months ago, stop debiting my account and i no longer want to deal with a company that just does as they please, i am still being hounded by debt collectors for amounts that are simply shocking, do not do business with PF as their ethical standards are non existent. I will never pay a single cent to this company and you can take me to court on this matter.