Can Premium PD Proxy allow me to have free internet from my ISP?  (I'm in Zambia using Airtel, MTN, and Zamtel)

Excuse me if this sounds dumb but theres nothing on the PDProxy website that explicitly says so. I used to use such a service some two years ago but the ISPs did something smart to cap the hype. A week ago I saw someone using PD-Proxy on zamtel but they are paying someone about USD 20.00 for the service a month.

I hope some kind soul here can clarify this to me so I can try the service. At present my tests are unsuccessful using free PD-proxy as there 1kb download speed max on MTN, Zamtel just disconnects after guzzling my prepaid credit.