American Lifeline Industries collection for unpaid balance withoyt notification of the bill Long Beach California

In the past I have supported the handicapped by purchasing garbage bages from them.  I have not done this for years after having been tagged for an unreceived bill and charged exxcessive interest on it.  I refused to buy from the Handicapped organization since that time.   Yesterday,  I was called by Jessica Meyer and Claudia Beaz, who preport that they represent internal collections by American lifeline industries.  They said I had purchased bags in Dec 2011  (which I do not recall doing..  They said that they sent an invoice with the bags, which I don not recall receiving.  However, they said a fullow up bill was returned to them.  They never sent another bill, and waited until now to contact me.  Instead of the 89.95 they are now charging me 448.03 and threatened to send me to collections They would not send another invoice "they only send 2 invoices/notifications.  I have looked them up and there are other complaint against these people as running a scam.  None of us want our credit poisoned but I am concered that this is a total rip off.