in game i click the $ for linden and it doesn't work why

[Rolig Loon]

That "Buy L$" feature in the viewer is a convenience, but I don't recommend using it. Personally, I never do.  As you have discovered, it isn't always synced smoothly with the LindeX, where the actual transaction is taking place.  When you click on the link in the viewer, the system is still having to connect to the LindeX, but there's a delay between the actions you take and whatever happens in the LindeX.  You may not see any change in the viewer for a while.  The only guaranteed way to buy L$ and see the change in your account balance  immediately is to open your dashboard and go to the LindeX.

[Rolig Loon]

That "Buy L$" feature in the viewer is a convenience, but I don't recommend using it. Personally, I never do.  As you have discovered, it isn't always synced smoothly with the LindeX, where the actual transaction is taking place.  When you click on the link in the viewer, the system is still having to connect to the LindeX, but there's a delay between the actions you take and whatever happens in the LindeX.  You may not see any change in the viewer for a while.  The only guaranteed way to buy L$ and see the change in your account balance  immediately is to open your dashboard and go to the LindeX.

[Amethyst Jetaime]

On your dashboard under Account>Billing Information, check to be sure you have allowed the payment method you have there to be used for buying $L in the viewer.  If it doesn't say that in the "Used for" column you can change it.

 

[Lindal Kidd]

Rolig and Amethyst have given you good advice.  I will add that you don't have to close your viewer in order to buy $L on the website.

1.  Reduce your viewer window in size by clicking the little squares icon between the minimize (-) and close (X) icons in the upper right corner.

2.  Open a web browser, navigate to your Dashboard page, and log in.

3.  Buy your $L.  Close the browser and then make your SL viewer window full screen again.

This is easier if you have a really big monitor, or better yet a multi-monitor setup.  But it can be done on a single screen, even a laptop.