How to get cash out without my debit card

I have just had to have my card replaced. I am going to a cycling event and there will be stalls without contactless payment. How do I get cash out of my Monzo before my new card arrives?
Any ideas? I am in the UK.

You might find a place that does cashback with contactless mobile payment but I know some places don’t allow that.

I’ve used mobile gift card cash-outs a few times, and the low fees and quick turnaround really made a difference for me. soaekpay.com handled it smoothly, especially during tight spots, and the payout hit my account fast without messing with my credit. It felt way simpler than dealing with content refunds or reselling stuff.