Ok so i was playing today and i was half way through a task for the mages guild (yes i finally got back in) and i went to the count of skingrad. i spoke to him and selected "reward" and he gave me 10000g. i tried it again, another 10000g. it kept going so i took a million g before i got bored. what it was for was the cure for vampirism quest, so if you have already done it go see him again and see if it works for YOU!