My VPN location is set to US, but IP geolocation service identifies my assigned IP as Querétaro, Mexico (Mozilla Corporation) resulting in websites such as Amazon are serving me Spanish-language content.

I am suddenly getting ads across websites in Spanish, and my Amazon account flipped to Spanish. I used several IP geolocation services which identified my IP address is assigned to Mozilla Corporation in Queretaro, Mexico, despite my Mozilla VPN being designated United States. How do I solve this problem?