I have the genie 2 in my house and a h24 in my motorhome with Directv and did not have any problems adding the h24 to my existing account only $7 a month for the extra receiver. I would call directv again see if you get a different answer to adding the rv receiver. I have found that I get different answers from directv depending on who I talk with. I have had this setup for several years now with no problems so it can be done.
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