If you receive a "Domain Name Expiration Notice" from "Domain Renewal Group" by way of letter in the post, either throw it out or return to sender. These letters are junk-mail and may be linked to a scam. These letters are very similar to the ones that were being sent by "The Domain Registry of America" not too long ago. If you receive such a letter, NetLink IT Services advises not to send any payment unless perfectly clear about the consequences.

Example of letter received from the "Domain Renewal Group":