Create a wordpress plugin

i made this video [login to view URL] and spreadsheet [login to view URL] to further explain, pls let me know if any questions HI There, we are looking for a wordpress plugin to be designed to reveal a phone number for our advertisers. Our website has hundreds of advertisers on it. If a person contacts one of our advertisers by phone, we have no way of tracking it. We need to track if a person called our advertisers so they will keep advertising with us. We want to be able to insert a short piece of code on a page/post that will have a button. On the button it will say "Click here for [advertisers name] Phone number" When a person clicks on it it will reveal their phone number. This will then be tracked in admin. Admin need to be able to see. Pick between date ranges to view the amount of people that clicked to reveal each supplier phone number. We should be able to download a .csv for each supplier with the date a person click to reveal their phone number. This can then be sent to supplier. For a good example, please visit this website, [login to view URL] , if you click into each venue you will see text that says "Enquire below or call us now" When you click on this it reveals the phone number.