Changing button shape

Hello
I am using ticket style 4 and the buttons are massive. I looked in the customize but there is no function to change the buttons.

I would also like to remove the two other buttons on this display which say ‘Unlimited Tickets’.

Does anybody know where in the code I will find this to change/remove please?

https://newforestcollective.co.uk/events/

The page I need help with: [log in to see the link]