customization required in unity ludo game

Hi, so i planned to buy readymade ludo game script like this . Download: Google Play: [login to view URL] Store: [login to view URL] GAME USES PHOTON UNITY NETWORKING AND PHOTON CHAT. IT’S FREE IF YOU HAVE LOW AMOUNT OF PLAYERS AND PAID IF YOU HAVE MORE PLAYERS. Features Made with Unity – Multiplatform Online multiplayer – play with Facebook friends or random player Create and join Private rooms Facebook integration – login, invite friend Login with Facebook or play as Guest Admob, Facebook Audience Network and UnityAds integrated In-App products implemented Shop – buy new chat, emoji Chat over room In-game invites to play a game with friend Online status for your friends Coins system Playfab integration Daily fortune wheel and notifications Play in rooms for 2 – 4 players If opponent doesn’t join room in specified time (default 5s) then game will be started with bots so players will not wait undefinetly to start playing. Changes and functionality what i will required in this . --- I need to add paytm as a payment method in which before start of the game user will ask to upload payment like 20,30,40 rupees and search for online player who also already uploaded amount so when system will check that both of user uploaded payment then it connect automatically and start playing with each other . once user will win that amount will be credited to winners account which means looser will loose the payment and winner will got the payment. -- winner can withdraw amount to his paytm wallet -- In this transaction between winner and looser it remains the backend commission fees like 20% like i upload 10 rupees and other party upload 10 rupees so the total amount will be 20 rupees and backend commission will be 4 rupees from winner then winner will get sum of 16 rupees available to withdraw amount . .