I have been looking to this post: https://forum.iot.t-mobile.nl/topic/310/sim7000e-accepteert-de-genoemde-commandos-niet?_=1591271570193 I like to have it work with T-mobile NB IoT on a combination of the SparkFun SAMD21 Mini Breakout connection and the SIM7000E break out board. Is there anybody who has succeeded to do so with Arduino code? Thanks in advance for your answer.

@Crowdsourcer If you see 15 mA it means there is a problem. I measured an average of 6.7 uA in PSM

If your device has transmitted data it has "auto registered’ to the main account and can not be claimed by any project account anymore. Everyday at approx. 8 AM devices get cleared again from the main account and can be registered again.