the mother of cogging

I am in Australia. Sent my MMM to Castle in January. From the day I posted it off at the local post office it took 24 days for me to receive a replacment. 24 days is very good considering that at least 7 days of that would have been travel time. Can't complain about Castles service my self. I think do what Neil said and contact them. Who knows, maybe it's been lost in the mail.