Google banned all tech support businesses from advertising on their platform, with the exception for known big companies like Symantec, because so many people were getting scammed. The same scammers then moved into the flight booking business and as a result, Google is banning all flight booking businesses that do not have a verifiable brick & mortar walk-in office.
It's unfortunate for legitimate businesses getting caught up amongst the scammers, but it is almost an inevitability. 99% of the people posting on here about tech support campaigns are doing so, knowing fully well that they are scamming innocent people. Their moral compass is so messed up, they don't know the difference between right or wrong when it comes to making money.
Another aspect to this is some of these fake tech support businesses often will ask for remote access to 'fix' someone's infected computer. After gaining access, they use any stored bank account details or card numbers to transfer money or buy things like gift cards.
Here are more articles about the issue -
https://www.bbc.co.uk/news/technology-40430048 https://gizmodo.com/microsoft-warns-that-tech-support-scams-are-still-on-th-1825502696