Vodafone — One Phone Number Issued to Two Subscribers

I am an Airtel subscriber with relationship no.[protected] with mobile no. XXXXX070707. I just found out that there is a Vodafone subscriber with the same phone number as mine.
Vodafone issued a connection with the same mobile no. XXXXX070707 as mine with relationship no. 80799491 activated on 18-november-2021.

One phone number has been issued to two subscribers which is creating a loss to my business.

The customer care executives are not responding.