@Tony *******
that is obviously a Google or Ai that does not fully understand the question as prompted.
A non-o dependant on over 50, requires no financial proofs at all, as they are dependant on the primary Visa holder.
The 40k income or 400k in the bank is a requirement of marriage to a Thai wife.
Has nothing to do with 2 foreigners and one of over 50 visa.
Thusly a completely wrong answer.