TRIPLE BILLED... BUT NEVER REIMBURSED!!!

A service I have NEVER had to use, and God forbid ever have to. A service I have paid for since it was first advertised (with the support of a Carte Blanche anchor) more than 20 years ago. Triple-billed in a month, and there have been similar complaints from others (I wonder how many times this has happened? What if I hadn't picked this up?). First notified them of the above on SECOND DECEMBER LASY YEAR! They acknowledged on the 4th. I followed up numerous times as I hadn't heard anything on the, until NINTH JANUARY! Indicated that THEIR OFFICES ARE CLOSED FOR THE HOLIDAY SEASON! Followed up again on the SEVENTEENTH... they indicated they would call me (I have NEVER received a call from them before or since this!) On the TWENTY-SECOND, they indicated it would take TWENTY WORKING DAYS to reimburse me! COUNTLESS emails back and forth since, with promises that I would be contacted and/or reimbursed. I have STILL not received any reimbur*****t (though they continue to debit my account)! If there are so 'sloppy', what would happen if I ever DID need their services! I shudder to think!