Thanks to the Questura- Immigration Office in Milano and the universities we collected some Q&A that may help:
Question: Unfortunately, many students are abroad and can not predict when it will be possible for them to return. How can they know about the new appointment? How can they collect the Permit if they miss the appointment?
Answer: In this case, students, upon their return (even if the appointment date for the withdrawal has been exceeded) can go directly to the same Police Headquarters where they deposited the fingerprints, and collect the residence permit.
In addition to the registered letter, the student should also receive an SMS message from the post office. The student can also consult the Immigration Portal using their tracing code to locate the Police Headquarters where the residence permit is located.
Question: Some students, who have returned to their countries of origin, may return to Italy when the 6 consecutive months outside Italy have already passed and, in this case the residence permit or the receipt, lose their validity. In this situation the student could not even ask for a re-entry visa but he should make a request for a new visa, unless exceptions have been declared to face this emergency.
Answer: at the moment, if they enter Italy within 31/8 and the residence permit expired between January 31 2020 and July 31 the permit is still valid. If they return after August 31 they should contact the Embassy.
Question: A Student had her permit expired on November, 2019, she submitted a renewal request on time but she was unable to go to the fingerprinting appointment because it was scheduled during the lockdown, and she had already returned to the USA. What can she do?
Answer: With the postal receipt of renewal request, she can return from the USA with a direct flight