I'm just shaking my head here-I feel so sad about what happened to you, and it seems to be another case of "the new member problems". On our first stay, we had a horrible time and really rethought having joined. Others have reported big screw ups on their first stay. The only thing I do want to say, from experience, is please don't give up on DVC. We almost did after our first stay but we're so glad we didn't. Hang in there and here's hoping for better times to come.
I feel lucky. I have not stayed at AKV yet, my home resort, but I will be there for the first time in July. I hope they have these bugs worked out.
My first DVC stay last year was great. We were at OKW, check in was perfect, got our "welcome home" greetings, the room was perfect and the whole experience made us so glad we joined.