Hmm yeah, it’s just the error being thrown is referring to sbc1.vcshosted as a domain. In an standard office 365 environment that would be added as a subdomain of vcshosted.uk unless it is being used for multiple tenants.
AFAIK, and I know this article refers to multiple tenants, that there ought to be a subdomain in the tenant for sbc1.vcshosted.uk
https://docs.microsoft.com/en-us/MicrosoftTeams/direct-routing-sbc-multiple-tenants#register-a-subdomain-name-in-a-customer-tenantJust wanted to check that aspect was correct as it may be causing the error. A check on MX Toolbox can’t find any validation TXT’s on that subdomain.
Best, Chris