I need an expert review but don't have a Canadian phone number anymore. It's not letting me enter my UK number. What should I do?

I am trying to use TurboTax Live assist to help me file my taxes. They require you to input a Canadian phone number, but I no longer have one. I only have a UK number, and when I input it, the system tells me to enter a valid phone number (which I guess is a Canadian one). What should I do?