Getting a 429 when trying to authenticate

Hi guys!

I am trying to consume the Monzo APIs, however seems I am getting tripped up on the first hurdle… when I try to authenticate and click the “Grant Access” button on the splash screen nothing happens, upon inspection in the console it’s throwing a 429 error for some reason. Which is really strange as I’m not sending a lot of requests and in-fact it has never worked even my first attempt.

Any help would be much appreciated.

See image attached.