Guernsey Post is not in the business of encouraging unsolicited mail. If you are seeking to reduce the amount of personally addressed advertising and unsolicited mail you receive from organisations based in the UK, you may want to contact the Mailing Preference Service (MPS). MPS is a non-profit making body established by the direct marketing industry to assist people to manage the volume of unsolicited mail they receive.
MPS also offers options to register a previous occupier of a current address, register a previous address, register details of someone who has died or register other members of the household, but continue to receive mail yourself.