Merging apps on Play and Store : I have a client for whom I have made three apps for different regions (App 1, App2, App3). 

Now the client changed his strategy and instead of having a different brand for every region he wants just one global brand which also means one app. He obviously doesn't want to lose the users of the three old apps in the process so my question is: can I somehow merge all these apps into one on Google Play and Apple Store?

I couldn't find sufficient information anywhere. All I could think of was to update all three with a new package but that would mean that three apps (now with the same name and same everything) remain in the stores, which would probably result in deletion.

Is there any way to do this?

Thank you for your responses.