How do I redeem my first See Music purchase?

Hello, and thank you for taking the time to answer my question concerning the first version of See Music. Only a little while ago I downloaded the first version of See Music from the apple (app) store. I decided to remove the watermark and upgrade to the ability of special effects. However, after only a little while using this app, the next version came out requiring me to purchase the year long subscription. I would like to avoid purchasing the same upgrade again. Since I have recently purchased the first version, is there any recompense such as getting the first year of See Music 3.4 free? I love your product and would hate to give it a bad name because of something as inconvenient as this.