Primary account holder issues

I have tried everything it will not let me until I "contact primary account holder". On top of that it is showing my phone number on my sons phone. Like it has my phone number listed but not my device, it's showing that my sons phone the s10e is under my phone number when it's not. Mine is clearly the s10 and iv had this phone since I purchased the phone and plan a long time ago. Something is wrong with their system I think. Also thank you for telling me about the chat option unfortunately it keeps giving me an error code every time I try to click it.