It is possible to require our load balancer to provide a super proxy in a specific country. 

Choosing the super proxy country can be done like this: servercountry-{country}.brd.superproxy.io. E.g. servercountry-gb.brd.superproxy.io

Shell
curl "https://example.com" \
    --proxy servercountry-gb.brd.superproxy.io:22225 \
    --proxy-user brd-customer-<CUSTOMER_ID>-zone-<ZONE_NAME>:<ZONE_PASSWORD>