REFUSAL TO CANCEL CONTRACT

I SIGNED A CONTRACT WITH THE CLUB WHICH OFFERED ME TIME SHARES FOR HOLIDAYS IN 2008. i TRIED CANCELLING THE CONTRACT IN 2010. I HAVE TO STATE THAT I WAS PAYING ALL MY SUBSCRIPTIONS AND HAVE NOT USED THEIR SERVICE. HOWEVER WHEN I TRIED TO CANCEL, THEY REFUSED AND TOLD ME THAT I COULD NOT CANCEL AS IT WAS A LIFETIME CONTRACT. I DISPUTED THAT AND REQUESTED A CANCELLATION WHICH THEY HAVE REFUSED TO GIVE UP TO THIS DAY. I THEN STOPPED MAKING THE MONTHLY INSTALLMENTS AND THEY HAVE STARTED LEGAL PROCEEDINGS AGAINST ME. <br> <br> THEY KEEP SENDING ME ESCALATED MONTHLY BILLS AND DEMANDS. AM AT WITS AS TO WHAT TO DO. PLEASE HELP!