items can not be obtained in the game

I have recently brought a world of Minecraft market place.

it is called Raft survival and in the description and the game it says that you can have a 10% chance of fishing up a loot crate which has a lot of items you need to carry on in the game and I have been playing for a long time / fishing for a long time and I still have not got one loot crate so I was wondering if you could have a look at it.

 

thanks for reading this