Auto Campaign spent all budget in a few hours, and now hasn’t even updated / made any sales

My budget spent £20 in just an hour, so I increased it to £30, that spent in 15 minutes, and now I have 0 sales, and it hasn’t even updated on my account. No extra clicks, impressions or spend has shown. And it says Daily budget has been reached. What is going on?

Typical of Auto campaigns, I recommend you lower the daily budget and the bids for each of your ad groups - alternatively do a manual campaign so you can keep an eye on costs.