Not much chance of withdrawing. I assume you have a Paypoint somewhat local to pay in though.
Monzo make it pretty clear when you withdraw (or at least they did the only time I ever did) that withdrawing money isn’t their bag, they really want everything to be digital. This obviously isn’t going to suit everyone.
If it’s a deal-breaker and if you only have a PO nearby you might want to try Starling who also score highly for their app.
If it’s not a deal breaker it might be worth keeping an eye on the business banking threads - they’re likely going to need a better way to pay in money then Paypoint, so PO would be an obvious choice.