Defunct advice on today's T-Mobile Data Breach page?

JMM42,

I understand your Account Takeover Protection issue. Since I have a Sprint account, I'm getting caught in a loop trying to access the information and sign up online. The info and sign up page is on Tmobile's site but one has to login WITH A TMOBILE ACCOUNT to access it. I called Tmobile customer service but didn't put my number in. They called me back within 2 hours. Here's what I got: 1) Tmobile cannot view Sprint accounts because they are still in a different database and 2) since I want to have access to Tmobile customer service instead of Sprint, I can go into a Tmobile store to migrate my account to Tmobile. It occurs to me that migration WILL change my plan, and instead of having access to both Sprint and Tmobile towers it MAY limit me to only Tmobile towers. That doesn't resolve the web site problem though.