Single post in PSA Regarding Paypal and DeviantArt

Shazi is indeed wrong :p But I lack full knowledge myself. What I think is happening is that the recipient has a Personal PayPal account and not one that is set up for sales - that's a problem for them to figure out, but you should just be able to put the amount requested in the box and it'll be fine. I think. Really they should have an upgraded account to receive payments for services.