that would be to clarify over to the Adobe Support. We are here the Community-Support and we have no infos about Accounting. Please take a look at https://helpx.adobe.com/contact.html for further infos.
The following thread had a similar issue but for Photoshop & Lightroom as opposed to Adobe Express. What worked was restarting, but @kglad lists multiple steps that you could try if a restart doesn't work: