How to show discount in cart and on checkout for refresh theme?

[SloburnCandles]

Hello! I have been playing around with this for a few days now...

I am wanting to show the discount applied to my products in the cart and checkout sections for an automatic 30% discount in the Refresh theme. Currently, I have the original price crossed out with the sale price and a sale badge showing against the products, however when I get to the cart and checkout, the sale price appears on its own with no indication of a sale, or that it has been discounted from anything. 

It seems I am only able to show one or the other. For Example: 

1. Show crossed out original price on products with sale badge, yet don't show discount in cart or on checkout. 

OR 

2. Don't show crossed out price and have original price with no indication of sale until cart and checkout...

I have tried adjusting the code, downloaded apps from the store and no success. Here is my website for reference: https://sloburncandles.com.au/

This is quite frustrating as indicating discounts is important for consumer behaviour at all steps of their journey. Any assistance would be greatly appreciated. 

Thanks in advance!