I dont understand how Zune purchases are so broken

Zune iz completely croken from me. All of the non-mp3 purchases i have made since 2006 regularly become unplayable due to "no rights" or because i supposedly cant sign in (even though i am already signed in and browsing/downloading from the marketplace)... songs and videos are no longer "available" at the marketplace which in crazy zune land apparently means i cannot play them anymore even though i purchased them and own them. already called support which told me they will not refund me any money for all these broken songs and thats just the way it works. any way i can 'reset' my zune purchase history... cause as it stands i couldnt even pay to redownload something if i wanted to b/c it says i have already downloaded it (dont want to start a new account cause its tied with my xbox)

does anybody else have these problems?

i am so frustrated i want to throw my zune in the trash... despite being a ridiculous microsoft loyalist

called zune support again. absolutely no help. i guess i will stop my zune pass and start purcahing from either itunes or amazon. this is so ridiculous... i spend so much money on MS products and nobody wants to help me... its not like you have that many zune users/zune pass users i would htink you would do everything you could to hold on to one of them. i know nobody on these forums will listen but i would seriuosly consider  buying a zune pass subscription and NEVER purchase anything from Zune marketplace. its not worth the loss of money and hassle