I have read several times that the consulate cannot change names after a visa request is submitted. That is also why they warn several times to provide the right names. The Dutch consulate even gives examples about what to do and what not to do.
The simcard has a Thai number, so there is a chance that some websites will think that you are Thai. But probably you can change things like this on the booking websites.
"Investment of at least USD 500,000 in Thai government bonds, foreign direct investment, or Thai property" In some countries you can get a new passport for less than this.