Absolutely terrible service. I have never seen such a desperation and outright demand for personal information. They'll enable you to sign up with no phone number, but months down the line, they'll block you from accessing your emails and demand your phone number. I have never seen anything like it. This isn't one of those options you can skip or even provide an alternate email for. This is an outright, give us your phone number for "verification purposes" (you never provided it to begin with) or we'll keep your emails and prevent you from accessing them. Who does something like that. And don't even count on their indifferent support team. They are no help whatsoever. They'll simply reiterate what you know and give you the same message as the error message. Did I take the time to write an in-depth email of my issues and concerns, only for you to repeat to me what you know that I know? Don't even bother with it. I had a back and forth with the app people and the main support team for weeks. I think their ultimate intention, if you have an issue, is for you to give up and delete the account, because they'll not help you. They do not care. Avoid yourself the headache, there are plenty of email services out there that will not demand your phone number. And that is the main issue here. Its fine to ask for something, but it has to be optional and allow you to make the choice. If it is a requirement, it should be so from the very beginning when you make the account. They can't suddenly, out of nowhere, decide to block your account demanding a phone number. Who seriously does that? And again, the key word here, is DEMAND. You have no choice in the matter. And when you explain this issue, instead of providing you with an alternative option, they tell you its the only way. Well, why is it the only way? It shouldn't be. Why do you assume people will be ok with this? Also who the hell believes that line of, oh we'll not keep your number or sell it or whatever. I don't care what you say. Why would I believe that? I won't no matter how many times you say it. Bottom line, disgusting service, careless support, obsessed with accumulating personal info. To hell with them all.