If your friend sent that you should have received some message. Check and see if you have access to the forums below. if you never got any message of any kind, then it's very well could be something happened when he/she sent that invite, and if that's
the case just go ahead and ping them again and ask for another :)
Xbox One preview forum
MCP. MCDST. LVL 80
Did this solve your problem?
Sorry this didn't help.
Great! Thanks for marking this as the answer.
How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site.