Changing a product type

Hi

Does anyone know how to successfully change a product type for a listing (own brand listing)?

Amazon automatically changed my browse node to running belt, i got this changed back to Sports & Outdoors›Sports & Outdoor Recreation Accessories›Reflective Gear which is the correct node, as my running vest comes with leds and a water bottle.

Now the product type is wrong and im unable to change this, even via flat file, I was previously selling this as a running vest and now its selling as a hydration pack, im unable to change the product type to running vest. I have a call logged with brand registry 11245852442 but so far they've been unable to make the change.

What can i do? Any support would be appreciated?

Thanks