I owed comapny card some money. The case has been forworded to General of Attorney office. What does it mean?

a simular thing happen to me I joined a gym fell behind in paying $1200 behind a year later they send a bill through a collection ageny the bill had collected intrest now it was $2500 the collectors agreed if I paid the $1200 I would not have to pay the crazy intrest so I paid the 1200 up front for you keep trying to get in contact with the debt collector and try to work out a deal that is good for you