Sounds like a Brit problem. Can't recall this in American English and my hackles are always raised :-)

>Use of these is getting worse. Some examples, not from real life, but typical of what I've experienced/heard a lot lately:
>
>"Hi Mr McDonnell. I was wondering if our offer has reached yourself yet."
>"Could you manage to make payment to ourselves by the end of the week."
>"We're sending the order to yourselves direct."
>"There's just myself and yourself here."