Your post was blank @GeoffreyM4974 and the subject line doesn't make completely clear what your question or issue is.
If you are asking how you open the SIM tray/slot on your phone and install the SIM then you need to check the instruction manual for your specific make and model of phone.
What make and model of phone is it?
If your question is about something else then please clarify what it is.
If you need to contact 48 support then see the links in my signature below.
