No way to correct information on the Gibson Firebird Platypus item page

When I created the page for the Gibson Firebird Platypus guitar several unusual things happened:

1. The link from Thomann was not working to get the item added initially. So, I used the link from Sweetwater and it worked. The link from Thomann seems to work now: if I try to add a new piece of gear it no longer shows an error as before (I have not completed the process to avoid creating a duplicate). However, the item on Equipboard seems still not to be linked with Thomann (e.g., not showing the price for it). I thought of adding a duplicate with the Thomann link and merging them, but I don't know if that is the right way to fix this kind of issues.
2. When the item was created on equipboard, two videos were added automatically. Those videos show a different version of the guitar (2018, and 2016 models), but I see no way to remove them. Is there a way to remove the default videos?
3. I included several videos about the guitar, but while some were added to the page, others like this in-depth review are not showing. Trying to add it again shows a message telling the video was added but it still does not show in the page. Is there a reason for this?
4. The critic review listed is for another model (Firebird V 2010) and it does not include the Guitar World review for the current platypus model. I see no way to either remove the wrong review or add the correct one.
   

With all the above issues, I was wondering if it may be better to remove the item and start again from the Thomann link, or there is a better way. My current GearIQ is 531, so maybe there are options that are not visible to me yet. Any help or advice will be appreciated.

Thanks!

I went ahead and created a new item based on the Thomann link and it does not have the previous issues. I submitted a duplicate request for the initial item to be discarded.

I think the items have been merged in the other direction than suggested. As a result, the combined item has the videos and reviews from a different model which are not possible to remove, and gives an error when trying to add the videos about the platypus model .