Specialized Greetings card site

I need a greetings ecard site with a range of cards for Birthday, Xmas, thank you, etc. This will be used by companies and other organisations on a subscription basis.
There is a USP which is that the cards will all have a catch phrase - "Thanks a Million". Each card will offer recipients the free opportunity to play the lottery free of charge. Please visit freelotto.club to see what we will be using behind the scenes for this project.