how can i get passed the billing thing when i already paid everything off i just want to update my apps

ok i had an issue where i owed 2 dollers give or take after my hard drive crashed. then after paying **** near 300 dollars for a new hard drive and a new touch pad i was redownloading all my apps i had already purchased. anyways long story short i got this billing message which said i had to do someting with my billing which i did paid what ever remainder balance i had owed so then i was able to download all the apps that i had got from the apple store to my new hardrive paid in full all songs movies apps games everything.. well come to find out when i had to update my apps its telling me that an app i was trying to puchase was declind and that i needed to fix my billing. for one i have havent even tried to pay for anything else and for 2. im paid up so why is this happening i have an auto desk sketchbook that i pay a year membership for and i want to update it so i can use what i paid for.