Dial `*#100#` on your Vodafone SIM
Dial `*111#` and check the menu for your number
Call Vodafone customer care and ask for your mobile number
Check the SIM card packaging or welcome message
Open the Vodafone app and view your account details
Check your phone settings under SIM or About Phone
Call or message another phone and see the displayed number
Check your phone contacts for your own saved number
Visit a Vodafone store with valid ID and ask for your number