I am getting the same message. My credit card expired and I need to put in my new one. I tried the replace the card option and also tried removing the card and registering my new card but I keep on getting the same message.
In the phone compatability chart in the "getting started" page I saw blu tank on there and thought it would work because it was listed. My mistake. Below it clearly showed it was not compatible. I was sad because I really like that phone. It was ...