Wow! Thats a very high rate of errors on the 29th - well above the known ILQ red limits.
I was looking at your line stats and was just about to say its amazing the line isnt interleaved - then I noticed the date on the summary page.... and your further post above saying that DLM did take action.
All you can do now really is leave it a few weeks and hope that DLM reverses the action. I doubt the ISP would be too willing to do anything within a couple of weeks.. from memory the instructions to the ISPs was that resets should only be requested if it appeared stuck. I waited 6 weeks and mine didn't shift.. I probably could have contacted them sooner but I was a bit busy and I was hoping it would correct itself. However since you have already contacted Zen and they are aware that it's a one off thing, you could probably try getting them to request a reset after about 2 wks if it hasn't already moved itself by that time.