Since your bills are changed to receipts, we can perform basic troubleshooting steps to isolate the issue.
First, delete the entries from the Receipts tab. Here's how:
Go to Transactions and tap the Receipts tab.
Locate and select the receipts that should be entered as bills.
Beside every receipt you need to correct, hit Delete under the Action column.
Then, reupload the bills by signing in to your account using a private or incognito window to check if this issue is browser-related. To save time, use either of these keyboard shortcuts: