Celcomdigi Wifi Scam

its been months since i got harass with sms and call saying that i have unpaid from Digi, first of all I've been using digi prepaid since 2016 personally and my IC register to 3 different number digi prepaid that i use. i never purchased or subs any digi wifi or postpaid or any telco wifi ever all of sudden this sms and calls say that I've Debt of amount to 6k (i ignore this since march this year) and last month i accidentally pick up their call and yesterday all of sudden my debt change from 6k to 3k and i need to pay it in one hour so they don't take legal action toward me of course i ignore it curious if they will come with surat merah in my work place or home but nothing came (i know its likely a scam but im still concern if anyone used my ic before because the frequent data breaches from our government website) btw i check both ctos (no legal action) and my IC on celcomdigi app (no postpaid or wifi account) also im relatively debt free and never took huge loan btw i already reported this to celcomdigi helpline through WhatsApp and call last month only got automated response and no action from celcomdigi so far