This may not be an iPad specific problem. But I am trying to create an Apple ID for my kid to use an IPad. I followed the instructions from Apple to create an Apple ID under family sharing, but every time I input everything it just stopped at the place when asking about phone number, it keep saying invalid phone number, tried all phone number in households, the same invalid number. So I stuck there can’t create a child Apple ID because of that.I m in Canada. Anyone else experienced similar problems? How do you think I can resolve it and where to find help?