Wont Let Me Open an Account

I saw a ad for a free slush when you download the app. First of all, thats not true. You have to download the app *and* create an account. Okay, no big deal. I go to open an account with my email address and agree to verify my phone number immediately (which is requested once you input your information). As soon as I agreed, instantaneously appeared messaging that told me an account could not be created. I checked everything Id input; I made no typos. Whats the problem?

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