New to sugaring, and not sure how to spot scams

I started looking into sugaring a while ago, and made an account on SA which I promptly forgot about for a while.

Today I got a message from a potential SD, but his message seems too good to be true.

The basic gist from the message is that his monthly budget is $20000, and that he would like me to travel to him for the arrangement. As well, he doesn't reply to messages on SA, so he asked me to download Viber to speak to him instead, telling me to send him a "few pics" so he could identify me.

From my viewpoint, $20000 a month seems ludicrous, especially as an older (late 20s) curvy SB. But I'm not aware of what's typical in the lifestyle so I don't know if it could be plausible. Plus, the thing about not replying to messages on SA seems a little off.

What do you guys think?