Replies not appearing in thread

[#1]

I've been trying to reply to a thread in the My Account/Billing forum, but despite getting a "success" message, the message doesn't appear.

Repeating the procedure just results in more "success" messages, or once it gave an error message for spam/flooding for too many attempts to post the same content.

Is something broken?

[#2]

These messages had ended up in the spam filter, I've removed them and will flag to the moderators to remove the duplicates.