I bought this MJ and activated it on my existing account because it already has another MJ. Registration is very easy, but I can only use one number at a time. I've tried contacting support at MJ but they can only do so on a specific phone number and I don't have consistent access to a US phone. So I have no information why it is not working as it should. I had no problems with my first MJ and have been using it for at least 6 years. The "Help" section on MJ's official site, which only addresses a couple of silly questions and none of the problems you may be having. So I'm stuck with 2 MJs with separate US numbers used in 2 different countries but killing each other and completely impossible to even speak to each other. If this problem persists I will stop using MJ. Customer service is very bad. If you just want to use an MJ then that's probably fine, but if you run into problems I'm not sure you can fix them.
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