According to this article Royal Mail has issued an apology to customers across Kent and Sussex who have been experiencing long delays to mail. People in Rochester, Sevenoaks and Canterbury in Kent, and Eastbourne and Lewes in East Sussex have been complaining about delays of up to 3 weeks to mail, with important documents having been delayed in the post. We would advise any customers sending mail in these areas to expect items to take much longer than usual to arrive particularly during the busy Christmas period.