After speaking to someone away courthouse they said someone would call me back they did after we'd hung up it said ussd code running. What happened are they in my phone abs how do I get them out?
There's quite a lot of reading uot there but basically it's how your network provider contacts your device. It's too detailed to go into here but this can be used maliciously. Again, many articles about this. So, either it was nothing of concern or your phone may have been compromised.
I don't know if there is a way to tell exactly what happened.