Hello! I see you're getting a "try again later" error when attempting payment in the TfL Go app. Let me help you fix that.

First, could you tell me a bit more? For example:
- Are you trying to pay with a contactless card, Apple/Google Pay, or another method?
- Have you successfully made payments before on this device?
- Have you tried closing and reopening the app or restarting your device?

Meanwhile, here are some initial steps you can try that often resolve this issue:

1. Close the TfL Go app completely and restart it. Sometimes temporary glitches clear up this way.
2. Check your internet connection on your Windows machine. A stable connection is needed for payments to go through.
3. Confirm your payment method has sufficient funds and is authorized. Sometimes banks block TfL payments if there are unpaid fares or security holds.
4. Log out of your TfL Go account and log back in again to refresh the session.
5. If you are adding a new card, wait a short while and try again as there could be a brief delay in card authorisation on TfL's side.

If these don't work, we can test deeper: check if your card is blocked by TfL for unpaid fares, or if there are network or app version issues. I can also guide you to contact TfL's support line if needed.

Could you please try these and let me know what happens? That way I can assist you better. Are you satisfied with this plan so far?

i am using tfl website

Thanks for clarifying you're using the TfL website for your payment. To get a better idea—are you trying to add a new payment method or complete a fare payment? And does the "try again later" message appear right after you submit the payment details, or at another point?

For a bit of context: The TfL Go app and the TfL website offer some overlapping but distinct experiences. The app is built for easy journey planning, real-time travel updates, and managing travel costs on the go. It also lets you top up Oyster cards or contactless online accounts and view journey history more fluidly. The website is more focused on journey planning and account management but may have more limited real-time payment processing features compared to the app1 10.

Since you're on Windows 10 with a WebKit browser, here are some steps to try on the website side:

1. Clear your browser cache and cookies to remove any old session data that might interfere with payment.
2. Ensure your browser is updated to the latest version for best compatibility.
3. Try using a different browser, like Chrome, Edge, or Firefox, to see if the issue persists.
4. Disable any browser extensions that might block scripts or interfere with payment gateways.
5. Verify your payment details are correctly entered and that your bank or card issuer hasn't blocked the transaction.

If you've tried these and still see the error, it could be a temporary backend issue on TfL's payment system or a block on your payment method. Sometimes waiting a little while before retrying helps.

Would you like me to guide you through clearing your cache and trying alternative browsers? Or would you prefer switching to the TfL Go app for payment, which often provides a smoother experience for these transactions? Let me know what you think! Are you satisfied with this guidance so far?