FINFIX not Updating Paid up account and still confirming accounts updated.....

I have paid up an account and all paid up letters have been sent to Finfix for several months now. I keep on getting my statements showing that this account is still being paid by Finfix. What a mess... Really so tired of sending the same documents over and over and emails confirming the account has been updated from Finfix...... Beginning they were very good now i regret even using Finfix.... If you cannot sort out one account and then confirm it has been resolved just to start the battle again ...... SO dissapointed.....