The practice, referred to by some as touring, involves changing the region setting on your Steam account to take advantage of sales or lower prices that might be available to consumers in other areas. Per the Steam Database Twitter account, Valve has added a restriction that prevents users from updating...
https://www.techspot.com/news/90191-valve-annual-steam-summer-sale-live.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/90191-valve-annual-steam-summer-sale-live.html?utm_source=dlvr.it&utm_medium=blogger