(Oops, posted that from the wrong account, bound to happen!)
Hi Natalie!
No problem! I’m sorry (@ciesse as well) - it probably wasn’t clear that we’d renamed the Promotions category. We talked about it here last week, but I’ll try to make it more obvious somewhere!
When you create a new topic you should see a dropdown menu to select the category next to where you type in your topic title.
I’ve deliberately allowed people to create uncategorised topics so we can tell if there are any categories missing. I’ll come in and categorise them for the time being but users at Level 3 will be able to do that too (not long now, hopefully!)
I think you can probably edit the topic to move it to a category yourself but as it’s Friday night (wooo - not really, I’ll be staying in and watching Gardeners’ World) I’ll move this topic to Showcase for you 
Oh and congrats @NOfkantsCurios on your anniversary yesterday!