They will if they find the amount to be collected would be more than what they would spend in filing a case against you.
Usually, they would pass the collection of the amount to a collection agency which would now threaten you with legal action unless you settle. It is their hope that you could settle with the collection agency as going to court and filing a case is expensive and may not be worth the amount they are trying to collect.
Settlement may mean an amount which you agree to pay and they will agree to receive which may or may not correspond to the full amount indicated on the bill.
The collection agency usually gets a percentage of the amount to be collected.
if you don't settle it soon your bill will just double or triple. so pay it as soon as you can. or just sell some of your gadget to pay your bill. just like the ads on tv, ibenta mo na yan!!