I resolved a violation but am still getting letters, how can I fix this?

Mildew and/or Stains on HomeDamaged Fence at PropertyDamaged Siding on HomeDamaged Mailbox at PropertyMissing or Damaged Shutter(s)Stains on DrivewayGarbage Can(s) in View of StreetImproperly Stored Items at PropertyNuisance: Excessive Noise at PropertyVehicle(s) Parked on StreetVehicle(s) Parked in GrassInoperable Vehicle at ResidenceRV/Camper/Trailer or Boat at ResidenceCommercial Vehicle at ResidenceHigh Grass at PropertyOvergrown Shrubs at PropertyWeeds in LawnBare Spots in LawnWeeds in Landscaping BedsWeeds in Driveway SeamsOvergrown Tree(s) at PropertyUnapproved Sign(s) at PropertyRemove Holiday DecorationsUnapproved Modifications at PropertyDead Shrub(s) or Tree(s)Other