I set up a Shopify store from China (where a VPN is mandatory), and eventually had to tell Shopify to delete the site because I literally couldn't complete the captchas any more to access it. Couldn't even back up anything before bailing.

Before the complete lockout it was taking around 20 minutes of busses, bikes, sidewalks, and stoplights each login. Nasty feeling when you come back and you realize you have to log back in for some reason.