Anyone else's instant withdrawal been pending for a LONG time? Mine is still unconfirmed after 6+ hours, and normally it's been very fast with freebitco.in (like less than 1 hour to get at least ONE confirmation with an instant withdrawal). Looking at the transaction on the blockchain, it looks like a really low fee was used, like 19-20 sat/Byte. Why is the instant withdrawal this time so much slower and seemingly such a low fee used as opposed to the other 95% of instant withdrawals I've done with freebitco.in in the past?

Can I do anything to speed it up? Feels like I have to wait many more hours, maybe even a day or more?

Thanks.