devtrackers.gg
I think we all should know by now that Activision Support has no earthly idea what they're talking about or what they're doing. I'd wait for Treyarch to say something about it before I believed what Activision Support said.
Hey all, we've identified the issue here and have a fix in the works, likely going live with our next major update.
Good news: the paintjobs haven't been deleted, they just currently appear hidden due to an issue tied to a larger back-end change. Thanks for hanging in there while we sort this one out.