The material you received from Palazzo Rucellai should have included the phone numbers for the school there, in case someone needs to contact you while you’re in Italy. After the first day, you will also have an Italian cell phone number that they can call with the appropriate international calling prefixes. As a final back up, people can feel free to contact me on my Italian cell phone. The local number there is 346-626-3146. From the US, the number would be