02 account showing ineligible for volt

I have a Volt 02 account and have recently added 3 new lines. The O2 site says I'm ineligible and I suspect it's because my address in my Virgin Media account is missing the county. I'm unable to remove that from the O2 account as the address is automatically create/controlled by a house number and postcode lookup.

I can't see my address anywhere in the Virgin app/website so can't find out how to correct the address so that the O2 and Virgin Media accounts match so the volt benefits can be applied to my 02 account.

How can I fix this problem?