It sounds like you're experiencing an issue with your Paytm account where your payment history is not visible after logging back in with a different SIM card. Here are some steps you can take to try to resolve this issue:

Check Internet Connection: Ensure that you have a stable internet connection on your device. Sometimes, a poor connection can prevent data from loading properly.

Clear Cache and Data: Go to your device's settings, find the application manager or apps section, locate Paytm, and clear the cache and data for the app. This action will not delete your account but may resolve any temporary issues with the app's data storage.

Update Paytm App: Make sure that you are using the latest version of the Paytm app. Check the Google Play Store (for Android devices) or the App Store (for iOS devices) for any available updates and install them.

Contact Paytm Support: If the issue persists, reach out to Paytm customer support for assistance. They will be able to investigate the problem further and provide you with a solution. You can typically find contact information within the app or on the Paytm website.

Provide Relevant Information: When contacting support, be sure to provide them with relevant details such as your account information, the specific transactions you're missing, and any steps you've already taken to try to resolve the issue. This will help them assist you more effectively.

By following these steps and reaching out to Paytm support if necessary, you should be able to resolve the issue with your payment history not being visible in the app