Welcome to the forum.
If it is effectively rejected for 4.3(a):
(a)ASR & NR Don’t create multiple Bundle IDs of the same app. If your app has different versions for specific locations, sports teams, universities, etc., consider submitting a single app and provide the variations using in-app purchase.
Is it what you did ?
there could be other reasons for spam (4.3(b)).
what type of app is it ? There are some categories which are over crowded and new apps are rejected unless they are really original and high added value:
(b) Also avoid piling on to a category that is already saturated; the App Store has enough fart, burp, flashlight, fortune telling, dating, drinking games, and Kama Sutra apps, etc. already. We will reject these apps unless they provide a unique, high-quality experience. Spamming the store may lead to your removal from the Apple Developer Program.
so please tell more so that one can help you;