The script is familiar to me just like any other shorteners here.

There are several reasons here
1. If you click on the shortened link all over again without completing the captcha it will count even if its on the same ip you might try it and see for yourself.
>Visit your shortened link and then exit all over again and see the magic
2. There are no available advertisements on that country which I may see 1% only since some shortener uses adsense.
3. They are using adblockers.