Paypal payment didnt go through

I have a customer who says they accidentally used the wrong paypal payment. I tried to set the order to Not Paid but it says I need to refund first but it's just pending in paypal (I haven't received the funds) - Do we just need to wait for it to cancel out in Paypal to reset it so she can pay again? It doesn't seem like she's being fishy she has 500 postive reviews as a seller and 0 complaints so I think she just actually used the wrong payment method. I just want to see if there's a way to speed this along cause its a big order and I'd rather get it out the door. Internet says it can take 30 days to just pend which seems ridiculous