Client Reward system

Hi guys,

I want to create a system in my wordpress website, whereby my client can search their account and get the total points earned. We manually enter the points for each user in a database or table something. When they search for their points with a specific userId or account, they can see the total points and can see what are the item they can redeem. There is a button for each item, when the user click it, it will send an email to us, then we will validate manually whether the client is able to redeem the item with their points.

I’m wondering which plugin can do it. Please help me, thank you.