Greetings, @jshaikh. 

Welcome to the Community. Let's work together so we can figure out how to post a payment as credit card from dotnet in QuickBooks Online. 

Before digging further, I'll need some additional information from you. Can you provide me with a screenshot of you posting the payment and where you're looking for the payment in your QBO account? 

This will help me determine a solution to this issue. Hit the Reply when you're ready with those details! 

1. Posting payment code

2. we are looking this into Receive Payment section. All payment details is correct except payment method, which is not showing.

Thanks for getting back here with additional details, jshaikh.

It looks like you are using a developer platform based on the screenshot you shared. 

Intuit has created a dedicated forum for API, web integration, and developer concerns. You can visit it and post this question to get help from developer support team. 

Let me share these steps on how to access it:

1. Go to this link: https://help.developer.intuit.com/s/.
2. Choose the product you're using.
3. Select Ask a Question, then type in your concerns or questions.
4. Click Ask.

You can always visit the forum anytime you have concerns with QuickBooks. We're always here to offer our help again.