Sorry for the hassle, everyone. I appreciate all the suggestions.I called the store, and they informed me that the SIM card was activated; hence the "error". I just needed to create the account.Again, thank-you for your solutions.
Cleared history. Tried a new private window. Tried Chrome. And then Edge. Still the same error. Going to try again in the morning; if that fails, going to try get my money back. I don't have time for this.
