Hopefully, Disney will reimburse you for your frustrations with Genie+ and that it will not sour you from coming back someday. I mentioned the MNSSHP in a previous reply to you because we had a blast that evening and Genie+ is not available during the party, thus no frustration with trying to use it. Disney has a Christmas party coming up soon if you want to try for a better result.
Speaking of that, my wife and I attended Disney's MVMCP back in 2019. Back then, they oversold tickets and it was very crowded. That, plus off and on rain all evening didn't leave us with much of a magical Disney experience. I complained about it on some of the forums and apparently some Disney customer service person saw it. She had me contact them and they gave each of us a free one day ticket to any of the parks for future use within the next 12 months.