Items not removing from cart after applying coupon code

Hi,

Another day, another bug I'm using the Avada theme. Two things

When I click on my coupon code it shows a revised total but doesn't immediately display this in the top part of my page unless I hit refresh. I've drawn an arrow showing the discount. I'd like it to look like this as soon as the discount is applied

2) A more serious issue is that once I have applied a coupon code if I change my mind and want to remove that product it doesnt seem to work. I just get a hanging screen. Products do remove if they don't have the coupon code applied!

Help!

Kind Regards
Kieran