Wind - credit expiry?

[raywright1]

Originally Posted by alexecca

Try to call *124*4242#
You should be called back by the system - then you can top up.

unfortunately it responds:
digiti *148*+39 seguito dal numero e da per richiedere l'addebito al chiamato: il suo credito residuo non sufficiente per effettuare la telefonate
so it wants me to call collect but i don't have any credit to do any activity whatsoever.