To do online subscription on the website with the ability to pay!

we need on the website button to subscribe to a newspaper... subscription form can be left in the form that I will send
the website
- delivered by the publisher: 288 roubles for half a year, 48 roubles a month;

Need people filled out a form online and carry out the payment on the website.
So what would we notify them that the payment was made to such person that would see the completed form.

What are the prices?