coupon

Hi for 3 months I have searched and searched and come up with nothing to explain to me how to get a click to reveal button (for a coupon code) on my site to have readers click to reveal and copy code for the the coupon code with tracking of use…I want it to be able to make sure reader cant just copy code and I miss out on commission. I dont want to have to get a whole new theme just to add this feature. My site is like a extreme couponing site and when I have coupon codes I want to make sure I get the commission if used. could someone please help me on how to get this without too much tech knowledge. I am self teaching myself how to design my website and it is taking forever but this is one of the issues I am needing to know about. Any help would be greatly appreciated!!!