As an update to this issue here is the response from Ebay

"I understand that you are frustrated with your previous contacts. I checked your chat transcripts but it seems that the two previous representatives misunderstood your concern because the steps that they provided is for you to add a store category but as mentioned by the two previous email representatives, we do have an issue regarding with the listing frames not showing in your listings. I do apologize for the misinformation of the two chat representatives and the inconvenience that this have caused you. Rest assured, our technical department is doing their best to resolve this issue as soon as possible."

It seems Ebay didn't like my posting a copy of the chat message where the reps claimed the problem was me and not Ebay.

For those that didn't get to see the chat message the thread basically outlined me explaining how the left category list has disappeared and asking how I could fix it, the Ebay rep trying to walk me through how to set up an Ebay store (when Ive been selling for years), me patiently suggesting that the his explanantion was unrelated and the subsequent narky response from the rep saying that every other rep would tell me the same.