If I dont pay will they sue to court?

You need to give us a little more information. What kind of loan is it?? What state do you live in? How long have you been paying on it??

Thank you for input.
This is been more than 2 years ready,with a long story.
This is not a loan or credit card
This is from credit card prossesing
One day one guy come over my bussiness and show me how much money I save when i switch to his services
put me in contract lease a credit card machine in 4 years with none cancel had been sign by my name with out promise by hime cancel any time... He lie to me after I find out contract can not cancel He did it ,I call to cancel services . Now I get a company lease credit card sue me in Newyork....with a contract 4 years...But with card prossesing had no contract sign with my name when I call them, they said I must pay for early cancel services $300 I said NO .this is a lie from you agent after that she agree and stop srevices when I close my account they can take any money out....Two years late to day they send a case to colecttion agent the amount services of 2 month around $100
Why they don't send bill after stop services .(card prossesing)
Why they wait two years ask me to pay by Colec Agent?
They send a letter to me asking to pay this voluntarily???
I send them a letter and ask for a contract had sign with card prossesing ( they never have) If a have a contract services had sign by my name I will pay !
And They keep send a letter to asking pay ???
Not yet to call my phone ?
What they will do after next when I dont pay?
What I will do ...?
Thank for help

The first thing you should do is send a debt validation letter, whether you believe you owe this debt or not. If you don't pay, they will continue to attempt to collect, and you could rack up huge fees in interest. It could ultimitely end up with them suing you. I'm sorry, this sounds like a huge mess.