AdMob, Cannot access the payments or billing page

It's ridiculous, but you have to turn off blocking third-party cookies in Chrome. Make sure to turn that block back on when you're done, or preferable, not use Chrome.

The payment screen will look like this.

Try using a different browser, the same thing happened to me when using safari, but when I used google chrome the payments tab loaded fine.

Xcode 7.3, iOS 9.3

After hours of stumbling around on the internet, I found this in the FAQ section of AdMob Help.

Cannot access the payments or billing page

The issue was that I had the incorrect cookie settings. Yes. Why they couldn't code a little more description to the error is beyond me, but I really feel that "...try again later" is a poor choice of words.

To add fuel to the fire, their solution is a bit outdated, the new Safari browser does not exactly have the correct cookie setting they describe. But nonetheless, I understood what the problem is...

If you use Safari, then do this:

Go to the "Preferences" for Safari...

Navigate to the "Privacy" tab and change the "Cookies and website data:" from any other setting to "Always allow".

Reload the AdMob "Payment" or "Billing" page and you should see the corresponding content.

Hope this saves someone time! Cheers.

P.S. You most likely will not be able to configure your payment method, because...

You can only select a payment method after the finalized earnings in your transaction history have reached at least $10.00 or your local currency equivalent.

In Safari 14.0, go into Preferences > Privacy, uncheck Prevent cross-site tracking. Then, reload AdMob Payments page.