I think that requirement went out a while ago. These days if you have money in your account, then easy to transfer.
Example last week. My daughter is travelling in the UK (and asked Dad for more money). Went onto the Krungsri app (but any will do) and within 5 minutes had confirmed transaction into her friends UK account.
Just make sure you have all the correct addresses , IBAN, Swift codes etc ready. Took 2 days.