Ah yeah my MSFT is in a state where everything is usable except Mojang account transfers. Support was unhelpful to gracefully resolve the situation, and recommended I give up and create a new MSFT account to hold the Mojang account, which I ended up doing. So now I have several MSFT accounts to hold various Mojang accounts.
That is every company these days. If you don't give them a phone number they assume you're a bot. The only people who know how to avoid this are the people who run bot farms.
This is exactly what happened to me three weeks after I migrated my paid Mojang account to a new Microsoft account in 2019 or so.
Haven’t played Minecraft since. Every so often I check. The account is still locked.
I wonder why they even keep the "suspicious behaviour" front. My account got locked within seconds after creating it and I had to add a phone number. Who are they trying to protect against? Scammers who bought Minecraft? I didn't even have a chance to behave suspiciously.
It is almost like it isn't about suspicious behavior at all!
It's an excuse they don't have to explain, citing "security reasons". It's an entirely suspicious way to run a business.
and when I decided to give my phone number, they couldn't send any SMS confirmation because it seems their sms provider didn't support my country.