The short answer
Understand the system before choosing an action.
Debt settlement generally refers to attempting to resolve an eligible debt for less than the full claimed balance. A creditor is not necessarily required to accept an offer. Programs may involve stopping or reducing payments, accumulating funds, provider fees, collection activity, credit consequences, possible litigation, tax questions, and no guaranteed settlement result.
Financial Learning Cafe explains the subject. Your current agreement, official sources, facts, jurisdiction, and appropriately qualified professionals control the decision.