Contact customer services via Live Chat or the numbers in contact-us or the Vodafone Social Media Teams via Contact-us-for-account-specific-queries. and they'll block your lost sim and send you a new one out.
When they send you the new one it may not work because of the account block so contact them again to have the block removed @ra7878
If you lost your phone as well they'll be able to block the phones imei as long as the phones been used on the Vodafone network
Current Phone >
Samsung Galaxy s²³ Ultra 512gb Phantom Black.
