I am unable to make any purchases in the game using any currency

After making purchases through the Blizzard store, my ability to buy items in-game using Eternal Orbs or Platinum has been blocked. When I try to make a purchase, I receive the following message:
“The shop is unavailable due to pending transactions. Please try again later.”

Of course, it’s impossible to contact support directly.

Please help.

You have to wait and hope it’s not bugged like others who have been waiting months