Hey everyone! So my Apple Watch Series 3 LTE got here today. I ordered it directly from T-Mobile. I have NOT been able to activate my watch on the LTE network and T-Mobile support is 100% clueless. The phone reps apparently don't even know what the watch is, and have not at all been able to help me activate it. I keep getting this error message after I click "setup celluar" and click next on the "Congratulations, T-Mobile is currently offering the first three months free...." message. The error is: ACTIVATION ERROR. This account or plan do not support adding a secondary device. If you continue to receive this error, call T-Mobile. Code 409 Has anyone gotten this error, and, if so, how were you able to resolve it? Thanks for any info!