Otex Technology — Issue with payment

Website: datatyping.in/index.php

I have taken a typing project from otex technology. I had received a mail from otex executive (Ms. Rshmi). I have purchased silver kit on inr3850. And i was assured to get inr60 per page for all the pages i will type.
Now there are making an issue on payment related to rate per number of pages.
I have typed 20 pages for now they are showing some agreement which shows different rate based on number of pages (I. E. 0 to 20 or 20 to 40 or 40 to 60 and so on). But such type of condition was not told before purchasing & paid software charges,

How can i get my money back. Please help.

Otex technology website - http://datatyping.in/index.php
On this site also no such condition is mentioned.

I am awaiting for your valuable feedback/help.
Please message or mail me on below details.

Thanks,
Vinit kumar
+91-[protected]
Vinit. [protected]@yahoo.Com