Activating card on the app and then not working

I received my card in the post today, went to activate it on the app and I cannot get in afterwards! I’ve resent the email countless times and it’s keeps saying the below!!!

How can I fix this?

“Please try again and contact us if it continues”

You’ve tried again, so now you need to contact Monzo. As you can’t go into the app, you’ll need to email

You could try deleting, restarting your phone and reinstalling.