When your contract ends, you do not comply with visa requirements anymore, unless you have a new remote job of course.
That most certainly will cause problems if it is checked.
Normally a employment contract is only provided once by an employer, so the same contract can still be shown as proof, but they might ask for additional info like recent pay slips to prove you still work for the employer.
Chances these things are checked when you do border bounce are much less I think, but it is also a possibility.
Debating is useless, Wise is no bank, they agree with that themselves. Because it is no bank there is no need for Thai embassies to accept money in a Wise bank account as proof of funds. The fact that some embassies accept Wise does not make an obligation for others to accept. Your statement that Wise works with DTV is incorrect. It only works when embassies voluntary accept Wise as proof of funds, the official requirements ask for a bank account.
Topicstarter got rejected because she said money in Wise not accepted as proof, then I told to transfer money to a real bank, then you told money in a single bank account is not the most desirable option.
Apart from that I think 500K is such a small amount of money there is no good reson to spread it over multiple accounts.
There is a big difference between Revolut and Wise, Revolut is in many countries a bank withbank license from centrale bank, and Wise is not a bank in any country.