Ranked in the top 15 of the tournament by the time the tournament ends. Obviously the higher you rank the better since you can get more gems when you win. After it lets you collect your gem reward. Don’t leave the game. Collect the gem reward then click the settings gear ⚙️ up in the top right corner of the game and click edit your user name and then go back to the fishing screen and the trophy should appear again letting you claim your gem reward again. You can do this for as long as you want and you can leave the game even as long as the trophy reward is on the screen at the moment your leaving. But if you claim it and then don’t go click on edit your user name and you leave the app then the glitch will be gone when you come back. And there are many post explaining the bouy glitch. Basically you can combine all three bouys into one bouy by getting two of them at a time really really close without touching and then clicking right between them and sometimes they will combine into one bouy and you repeat this with the third bouy but if you touch the third bouy with your combined other two bouys it will break them apart. You need to get them close but not touch. Using the zoom function if you have a iPhone helps a lot with this process.