Magnepan 3.6R tweeter replacement - Any suggestion

One of my tweeters are not working, my dealer has shown frustration trying to get the proper support from Magnepan, I have also called and left messages and no response from Magnepan. 2 months now and multiple calls and not a single response. I just wish to buy a pair and replace them myself This is not usually the case since Magnepan are usually very nice and good with responses.......I like my Maggies and not sure what can be done, I am now reading some other threads with service support delays and concerns, anyone out there with some suggestions would be appreciated, thanks