Airtel — My Phone number spoofing

Hi, Looks like my phone number is spoofed as I get calls from Random numbers saying i had called them. Earlier a crypto currency platform spoofed my number where a army veteran tried contacting me. I had raised this issue with airtel support with evidence and was suggested to change my sim to avoid any sim swap danger.
However, the spoofing continues and i still get calls. Even yesterday i got a call from [protected] stating they received a call from me at 19:14 on 20th Jan 2022.

Kindly help resolve this issue as i feel this started only after porting to Airtel.