Ugh help me please

I got the app for 99 cents, so I had the full version, but when I went to the care guide it said I had to buy the full version, it also said that if I already had it, it would not charge me twice, so I clicked the buy now button, then it said payment cancelled! I dont get it, I really need help with my bird but it wont work, the only good side to the app for me is that my bird likes the chirping in the background, THIS IS NOT A FAKE REVEIW, THIS IS REAL, please help me!

Wolffur345 about Parakeets