The Da Vinci Cryptex 3

So I got stuck on a level. I finally needed to use the bulb. I watched the ad and got the hint I already tried before hand in thinking about using. I still was stuck! So I watched another ad hoping to get a different hint. I gave 3 stars because you only get one hint! I watch the ads 3 different times to see if it was a glitch or something. It wasn’t! It’s only giving one hint. So I was defeated shortly after getting started on level 4! I had no idea as to how to crack the code on that one. I really was enjoying the game until I got stuck and needed a hint. Other than that it’s an ok game that I wish the bugs of more hints would be a thing after watching additional ads. Will be back if this gets fixed. Other than that good game. Thanks.