Kwani airtell does not audit its database regularly? Last month one of my two mpesa lines was deactivated since I had used my first and last names to register it while my initial line had slightly different naming. I had to go with my ID to Safcom offices to verify both lines are indeed mine for them to reactivate it.
If Airtell does an audit like that chances of you having guessed some numbers that do not correspond to the registered names are high na zitafungwa with any money iko ndani.