This number is for SSL capital. They are a debt collection. Who handle debts on behalf of others. Best to answer and not listen to people saying its SCAM as it is not. You will owe money to them. As they handle debt. Ignoring can put you in further difficulties
Debt collection, SIL Capital. They buy debts from other companies and try to settle at a reduced cost. Of course if you ignore them for 7 years any debt becomes unenforceable, Depends on the size of the debt and whether you want to pay it. They'll keep calling though of course.