New recall belt tensioner- V60

Today was a registered letter from the VCG in the post office: Our V60 D5 (205 hp) EZ 15.11.2010 belongs to a “limited number of vehicles of the Volvo V60 series in which an early wear of the belt tensioner for auxiliary units can occur.” We should now immediately get in touch with that. Will call tomorrow… Well, I thought already after the last inspection (3 years/60,000) again for 1 year rest. In this maintenance, by the way, the belt tension was also r renewed according to maintenance plan. Currently it is km 65,000 without any problems. Does anyone know more about this action or has received a same letter? VG haptik