Insurance returning from UK

[beachbuggy]

A friend living in Thailand is returning to UK today and will return in a few weeks. He is 75yo, British and lives here on Non O for retirement. He has Covid insurance from Roojai but can anyone advise re the health insurance requirement.

Is it the 400/40k requirement or the 100k USD requirement?

does it have to be with a TGIA Company?

I am trying to sort it for him whilst he is away.

TIA

 

[treetops]

He needs both to return.