Mobile number update query

I need to change mobile number, I don’t have my phone number which I used previously for login and I don’t have app logged in my device then how to change mobile number

Hi @Rahul1703! Welcome to the community.
To change your mobile number, you’ll need to have your previous phone number active. Otherwise, at least, you should have access to the app. Suggest you obtaining a duplicate SIM card from your network operator.
Also you mail this request to support@jupiter.money