Same here, got the same rejection, with no reason except "other", which doesn't give me much to work with. It's my first app on the platform, maybe they do a deeper dive for first time accounts? Anyway, hope you get this resolved. I saw one other and he had his developer account closed. There aren't many others with this message so if you do get a response, please update, it will likely be useful to many. I'll do the same.