The following advice at this point:

Our attitude towards gatherers in common, also as specially towards beer coaster gatherers, we better keep confidential at this point, but due to the many really annoying requests, at least this:

Dear gatherers, we will generally NOT send any coasters or other stuff to anybody!

So please save Your efforts and postal charges as well as our nerves and neglect the many written or even  by phone requests.

Thanks.