coupon code not working on all items - Lucky Wheel

I have a sale running this weekend, using the Woocommerce Lucky wheel. I have entered qty of 50 for # of items their code can be applied to for discount in their cart I did not list any products in the incuded so that everything on website would be included.
Customers were only getting a discount on 1 item. This particular coupon is for 20%, it is not giving 20% on entire cart?
At first I thought it was because I didn’t notice there was a quantity to include in the setup, so that’s why I increased it to 50. But it is still not working, and I am losing customers and credibility? What am I missing.

Hi @SpecialKreations,

Please contact the author of your purchased Item, the Item author will assist you.

How to contact an author to get support or for any technical query: