This is confirmed by Royal Mail - The Trading Standards Office are making people aware of the following scam:
A card is posted from a company called
PDS (Parcel Delivery Service)
suggesting that they were unable to deliver a parcel and that you need to contact them on
0906 6611911 (a premium rate number).
DO NOT call this number, as this is a mail scam originating from Belize .
If you call the number and you start to hear a recorded message you will already have been billed £15 for the phone call.
If you do receive a card with these details, then please contact Royal Mail Fraud on 0207 239 6655 or ICSTIS (the premium rate service regulator) at
www.icstis.org.uk