Tickets to "London International" - validity on SouthEastern HS

[pmcgurk]

Afternoon all... apologies for the noob question but I am struggling to find the information elsewhere.

If I buy a ticket from Witham to London International (CIV), is it valid for travel on SouthEastern HS services from Stratford International to Ebbsfleet?

I ask because for my next trip on Eurostar I am starting my journey from Ebbsfleet, but returning to St Pancras. I want to buy EOR - EURO STD RETURN from Witham to London International, but I am not clear if it will cover the Straford >> Ebbsfleet part...

Thanks in advance

 

[TurbostarFan]

I would imagine no. Ebbsfleet International is not a London station.