Amex Debt Collection Complaint

Amex Debt collection department,

Credit card Taking/threatening an illegal action Sued w/o proper notification of suit Florida

I have had payment arrangements with this debt collector for several years now. Thay have been taking the arranged payment from my bank account on a monthly basis. The terms of my arrangement have expired and they claim that because I have n't contacted to make new arrangements, they have opted to sue me. Two days prior to being served, this company did take a payment from my account. I have never received any kind on notice outlining new payment arrangements.. I have never been sued and I find this to be just an excuse to get additional money from me. I am emotionally distraught over this. They have served me and I want to know if I shoulld retain a lawyer to protect me from any further action. I do n't want to tarnish a very good credit rating.