Anyway Now i don't want that service anymore, i could not find a way to move the paypal API Auth from paypal, too me a while but i find it. Here is the steps to do so.
- Login to paypal
- Click My Account Tab
- Click Profile Sub Section
- Click API Access under Account Info.
- Under Grand API Permission click view or change
- select the MyStoreRewards permission
- click remove.
Now you are all done