if you had typed "technical" into the search bar of this forum.You would see that you are yet another person facing this unfortunate and on-going problem:
I can only suggest that you give Virgin mobile customer services a call on 789 from a Virgin mobile if you already have one
Or 0345 6000 789 from any other phone and see if they can advise you.
If you want to say thanks > click 'Kudos'.Answered your question? > click 'Mark as Helpful Answer' also.