RATHER DEPRESSING

We are now very concerned about the Yurt canvas and the mildew that has developed.
The extent of the problem is very distressing.
we finally has a response from the Yurt maker, who gave a logical explanation as to why the mildew may have developed where there are two layers of canvas and it may not dry out as easily and said that they would send us some mildew cleaner which we havent as yet recieved. However ,the mildew is also on the single canvas wall which doesnt make sense and also a good number of poles are black! at least six , ( we havent been able to inspect them all) The wheel spokes are also black in places. Icannot believe that we have this degree of problem after only 31/2 months of use!

Have taken some pictures to send to Yurtworks so they can see the extent of the problem.
not sure if i want to post them on hear as they are too depressing for words.

Really feel that we need to take immediate action to try and prevent it spreading any further, but waiting for yurt maker to advise.
We had planned to take it down for the winter as advised,but we were not expecting to work on any form of restoration at this point in time. so we must now take it down ASAP to assess the extent that the woodwork, trellis and poles are affected. But we cant really store it until this problem has been properly resolved. We are gutted to say the least. spent all my savings on this venture and have really enjoyed it over the last couple of months, but what was a total delight is now a real worry:(