Modify the design of my VOD on CSS to make it more attractive. Modify the design on the app from the VOD PLATAFORM. Help with with configuration of advertise banners in both APPS IOS ANDROID and maybe create a chat for the app for paid users.

What i need is to modify the design of my VOD on CSS to make it more attractive. Modify the design on the app from the VOD PLATAFORM. Help with with configuration of advertise banners in both APPS IOS ANDROID and maybe create a chat for the app for paid users. I mean full screen ads, and banner adds 320x50 for the apps, and help set up google adsense. As well i woould like if u know how to do overlay ads banner durring the video playing. And last, i would like to PREMIUM USERS chat multiplatform. U can have a look at the platform here [login to view URL] Please write me how much each thing it would cost me , or what things you can do , how much it cost me. because i receive a lot of offers i only read the ones they answer to this questions of mine, so i am sure you read carrefully all my request. HOW MUCH COST ME EACH REQUEST and HOW LONG TILL I GOT THEM FULLY FUNCCIONAL (The apps are already fully funcion as theyu are white label app and white label OTT (VOD platfomr - Viodeo on demand)