I truly understand the incovenience this has caused you, @Stefanie161219. I want to assure you that your concerns are valid, and we'll take them to management to make our customer service better.

Since you're still experiencing the issue, I recommend reaching out to our QuickBooks Online Support for assistance, especially if you still need to be added to the list of affected users. This will ensure that you receive updates on the status via email. 

Here's how:

1. Sign in to your QuickBooks Online company.
2. Go to the Help icon.
3. Click the Search tab and select Contact Us.
4. Provide a summary of your concern and click Continue.
5. You can either choose Chat with us or Have us call you.

Additionally, you may find this article guide helpful in processing a refund and vendor credits in QBO for your future reference: 

•  View vendor transactions
• Manage Vendor Credits.

If you have other concerns regarding vendor credits, feel free to go back to this thread. Take care and have a good one!