guardian Alarm Systems and Services Trying to Collect money for a Contract signed without explained $931.00 1189 Hypoluxo Road Lantana, Florida

On 2012 I Installed a system Alarm with Guardian Alarm and I paid in Full for all the equipment since that date,  I believed it was everything that owned to this company and I started to paid my service monthly they made me sign a contract that It's was never explained in details and I Had to sell my house in March  2015 by a Short sale due to my financial situation, My husband called to the company to cancel the service and wrote an email to Guardian Alarm before we moved to cancel the services and nobody explain anything about pending charges and owner the equipment or move the equipment and after 9 months I started to received a phone calls from a Collection Agency Attorney office Morgan Rosenthal  314-590-0880 a collection company services for a pending balance in our account because  Guardian Alarm submit a Case against my name Kiria Cora due to the pending Balance over this contract, on november 18th  I finally started to communicate with Carlo Stringery and Today with Katherine about our situation and the new owner just decided to don't let the company access to remove the equipments and Katie call me to my cellphone at 12:39 pm from a 561-547 4550 to explained that they will give me a discount for about  500 and I will don't accepted I will need to handled my balance to zero since I need to buy a new house and also applying for a new mortgage and They don't want to help me to clear this issue PLEASE HELP ME!