Hello campers I'm looking to bring my thai girlfriend to england for holiday is it best to do it through an agent in thailand ?

I’m second guessing my plan and could use some advice from the hive mind here. I arrived last week on a non-o retirement visa. I got a phone number and opened a bank account at Kasikorn on Friday. My original plan was to get this much done, then use a reputable agent for the rest of the process. However, it seems like immigration is cracking down all over, and I don’t want to jeopardize getting an extension by not actually having 800k in the bank for the proper seasoning period. How risky is it to use an agent right now? I was planning to go with the 65k/month method for the following year, and will start those monthly deposits as soon as I figure out how to use Wise!