I haven't personally dealt with Chinavision, but the only thing I can think that has happened is that you have been reported by someone for listing a fake product.
Now, this does happen with some competitors on Ebay, they can be a nasty little bunch by running to ebay and reporting their competition for selling fakes, even when they're not!
If you feel that the product you listed is genuine, I would contact Chinavision to confirm that, and then contact ebay with the evidence they provide you to discuss the matter.
You should also check with Chinavision regarding their drop shipping listing policy, just make sure you have the rights from them to duplicate what you did.