Pldt call para maningil

So my mom got a call lawyer daw about sa unpaid bills 5k-6k ata yon sa old PLDT router namin. Totoo ba nananakot sila na ihaharap sa korte o sasampahan sila ng kaso? Kasi it's been years since nag palit kami ng router si pldt nag palit mismo kasi napaka outdated na kami and yes paid ung month na yon before ma change router namin that was provided by PLDT kasi tinanso ung wire namin don kaya nawalan kami ng net (lol). Anyways these past few months may nag message din sa mother ko sa messaging binibill pa rin kami from that old router and winawarningan na mag bayad o mag kakaroon ng legal problems which my mom ignored until 3 or 4 months ago 'Lawyer' daw ang nag message kay mama tinatakot siya and alat, and now tumawag. Normal ba to? I did the number checking hindi naman siya registered sa gcash Pero about PLDT siya kasi sumagot ni mama and the old details are correct. May kelangan ba kaming gawin? Or should we just ignore it?