For example, with a global bet of €1.20 you can buy a bonus with €60. I think that if there is no bonus purchase, in the screenshot the "BUY" icon is displayed.
Why use a VPN? it is not for playing at a casino where your country is restricted. In the event of a withdrawal request, this poses a problem. using a VPN is to play certain games that you cannot play them if you connect with the IP of your country.