Is there a cheaper service like paypal?

Cheaper in what way ?
What use are you looking at putting this service to ?

The more information you give the better we can assist you with your issue.

Yes, and cheaper is not always better,

I use paypal almost every day, they have paid me back on times I have been cheated, and they have good response time. I know there are a few other services, but trust and customer service goes along way