Unity Rummy Game Update

I have a Rummy game developed in Unity that needs some updates. Specifically, I need you to replace the current cards with new ones and create a page for the game. Additionally, you'll need to load a payment page that we will provide.

Ideal Skills:
- Proficiency in Unity
- Experience with game development
- Ability to integrate payment systems
- Strong understanding of game UI/UX

Please note, the new cards and payment page will be provided.