Series horny - amazon unfortunately poorly ...

I love the series "arrow" - precisely because it is comic-like, bold, exciting and because they always causes cliffhanger, let the breath away me. I was very pleased that I - very shortly after the first publication in the US television - here the consequences could see the original! this type, even if you do not need anything for word understands the atmosphere very close and much better again than the German dubbing. I now understand is not that easy to follow not be broadcast, allegedly because of license issues. I had complained for this episode 19 on Amazon, but I get no return info. finally I have the follow based on iTunes - have apparently no license problems ... now also appears Episode 21 not timely, I wrote amazon again, no answer. which is bad service! There is also on iTunes the opportunity to buy at the beginning a whole series season - unlike the Amazon possibilities Single follow with the much cheaper.
I am usually an extremely satisfied customer Amazon (Amazon use for almost anything) and think it would be very great pity if this would not be part of deficit Amazon fix! but that will - I am sure - Amazon on regular customers cost if it does not improve ...