I don’t seem to have that option and also on iOS like you.
Edit - ignore me, it’s in the pay early section. I was looking in the pay extra section 
Monzo make some of the weirdest product decisions.
1 Like
I agree. I only joined for a joint account, to find out that my wife and I need to pay £3 per month each to use virtual cards in the joint account. Very odd, and highly irritating.
1 Like