AlertUSA / Scam charges
This company has billed credit card without authority, bills without authority for sums not owed and adds about 20% monthly penalty for non-payment. Though complaints have been sent by certified mail they absolutely refuse to address them or justify their action in any manner. They are ripe for a class action to put them out of business or otherwise change their uncaring way of doing business. Apparently they are the subject of numerous such complaints.