WANT 3 YEAR OLD DEBT PAID - NO WAY!!!!!!!!!!!!!!!

THEY ALL OF A SUDDEN SEND YOU AN SMS FOR A LOAN APPARENTLY APP**** FOR IN 2016 - THREE YEARS AFTER THE FACT. SORRY THIS HAS PRESCRIBED. AND I HAVE NO PROOF OF ANY CORRESPONDENCE THAT I OWE THEM ANYTHING. NO CALLS. NO LETTERS NOTHING. WHO THE HELL ARE THESE PEOPLE!