Asking information on renewal

Hello sir
I would like to ask you some question on Permesso di soggiorno per lavoro open ended
i have applied for renewal and i have not received (the permit card) it yet but i have the post office receipt i even travel with the receipt but the card is not coming until know i have waited for about 5 months so is there a problem with the card is not coming last time i have received it with in three month so what can i do to solve these problem and is there a possibility that it can led to a cancellation of the renewal?
thank you

Contact the issuing authority for information.