We're onto it.
Even though we reinforce the need to slow things down, ie try writing down your own VOLMET after you've broadcast it, it doesn't always work. Education doesn't prevent laziness or carelessness, unfortunately.
If you continue to have a problem, don't be shy. Let us know on frequency. We will pass on the info to the offender and try and get them, again, to understand the problem.
The other problem that some staff have is in understanding that if you guys miss your desired METAR/s first time around, you've got to wait for the next replay; pretty frustrating, I can imagine.
You're well within your rights to make the comment, chimbu; let us know if there's anything else we can make better. (waiting for the avalanche!!)