The Irish telephone number +353 80 027 8509 has been lnked to a revenue and customs scam in the Republic of Ireland. If you get a phone call from the number +353 800278509 you should hand up and not answer.
Recipients of calls from this number report being asked personal and banking questions. For example one recipient of a call from +353 80 027 8509 reported being asked about his address and PPS number.