Also lack of downtime procedures. They seemed to have assumed that nothing could go wrong when you should assume that everything could go wrong. From their own

Also lack of downtime procedures. They seemed to have assumed that nothing could go wrong when you should assume that everything could go wrong. From their own documentation, in mid-2015 (kinda late, but better than never), the providers issued eachother eachother's SIMs to use in these situations. Who qualified exactly is a mystery.