Looks like you have only one option left there, just enable the auto withdrawal mode. The next batch of automatic withdrawal will start to happen after almost 4 days. You will also have the option to withdraw your funds earlier through the slow or instant withdrawal method if your pending withdrawal gets processed before that. If I remember it correctly, then it was possible to make another withdrawal request in the past while one was pending. They were merging the balances of the two withdrawal requests together (if the address was same). It was a few years ago though.