virtualsms_buy_proxy
Purchase proxy traffic (GB) for a selected pool type. Returns proxy credentials and remaining balance. country_code here is only a soft preference for provisioning. For actual per-connection targeting (country/state/city/zip/asn) or a ready-to-use connection string, use virtualsms_generate_proxy_endpoint after buying. To persist a default targeting on the sub-user, use virtualsms_set_proxy_targeting.