How to refund purchase.

I accidentally made a second purchase for premium membership after receiving a Paypal error. Turns out that it was only an error on Paypal's end and I actually received my premium status. How can I get a refund on one of my purchases?

I think this would have to be requested through PayPal.

no, seph will deal with it when he sees this.

How long will it usually take for it to be dealt with?

Seph is currently inactive at the moment. When he comes back, he'll deal with it.