Post Office Scam

We have been informed by a member that there is a scam of in which someone pretending to be the Post Office leaves a card saying that there is a package to be collected and that the recipient should call a telephone number. This number was a premium line number which, when called, incurs hefty charges. Under no circumstances should this number be called. If this message is received, go to the post office to confirm whether or not there is a package.