Xbox mulitiplayer does require an Xbox gold subscription please double check you have that subscription set up and it should allow you to join multiplayer and realms ^AC
Sorry about any delay you're encountering! We try to respond to tickets as quickly as possible in the order they were received. We appreciate your patience! ^AC
Connection troubleshooting tips can be found here! ://help.minecraft.net/hc/en-us/articles/360055710592-Minecraft-Realms-and-Multiplayer-Troubleshooting ^AC
Sorry about any delay you're encountering! We try to respond to tickets as quickly as possible in the order they were received. We appreciate your patience! ^AC
Thanks for that! I can confirm that your request is in our queue, and one of our agents will respond to you as soon as possible. We thank you for your patience while we work through our backlog of support requests! ^FF
You should've received an automated email letting you know that we are working on your request, and there should be a 7-digit number included in that email (i.e. 4567890). Let us know if you're able to locate this info! ^FF