Dutch Quality Seeds Defective seeds Internet

I have bought seeds from Dutch Quality 4 times.  TWice there were no problems.  90% germination average, and the plants were as advertised.  ONce, the strain does not appear to be what it was represented.  This last time, I had a 20 % germination rate.  When I contacted the company, at first the didnt respond, other than the automated ticket creation.  When I went to check on the open ticket, it was no where to be found. 

I emailed them again.  They blamed either the shipping, or my growing equipment and/or technique.  When I responded to that by saying that I was not a novice, they again didnt respond.  I emailed them once more, expressing my disappointment.  Then they sent back this email citing all their procedures quality control etc.  Usual run around from a company that does not want to stand behind their products.  I hope that others will pay heed to this.