After reading the newer comments here, I am going to play Devil's Advocate.
First, I think we can (mostly) agree that her shops are bogus. She's not actually doing any shops. Maybe she is - or maybe she just found an open in the market. Think about how many people come to this board asking the same questions over and over again. How many times do we (myself, too), snark off with a comment for them to go find the information themselves. Why do we do that? Because we had to work our butts off to figure it all out for ourselves and we do not want to simply give the information away. Maybe this chick mystery shopped in the past. She knows she can't give out real client information, but she could sell her knowledge on the subject; such as, the best mystery shopping companies. Tips to maximize profits, etc.
Many people turn to mystery shopping with the idea that it is "easy" money. It's the same reason why people resale. You have entire groups of supposedly other resellers on YouTube making tons of money through video likes and affiliate links making videos about reselling. I know for a fact some of them have never sold the first item. They saw an open in the market on informational videos and that is their "reselling" business. And the resellers that are legit, if they were really making 100k, they would hardly have time to make well edited YouTube videos five times per week. Finally, there is a customer base out there that is lazy or they don't want to waste (in their view) time pulling together information. They want to be spoofed. These people are willing to pay for information because they believe they will easily make their money back with little to no effort because of the illusion they've been sold. I used to be a magician (really, the title I prefer is Illusionist). When people watch me perform a trick, the fact that they want to believe what they are seeing is real, makes it much easier to sell to them the idea that it is. Of course, it isn't - not the stuff I do. And so I think it is a similar thing here. Her customers want to believe what she is telling them is true, because they want to make easy money, so they are inclined to buy into the illusion. If she is promising "customer support," as someone posted here, then she best live up to it. Unless someone here pays up, we probably won't ever know one way or the other.
The TikTok shopper is just telling them what they want to hear, and there are plenty of people, even here, who want exactly that.
In conclusion, TikTok girl, keep doing what you do. Make that money. Just don't spend it all at once, because I have a feeling your business isn't going to last long.
(If this posts with a lot of misspelled words, I apologize. I'm having a keyboard issue and it won't stop typing!)