Failed to install a pack that does not exist in the store but asks me to buy for another

Hello, good morning, I would like to report a bug in the Minecraft PE store.
What happens is that a few moments ago I downloaded a texture pack from the network, that is, it was not from the store but when I wanted to use the texture pack (I do not know if it is illegal, sorry if it is) when trying to use it it appears to me that I have to buy that pack that I download from the net in the store.

(The file that I downloaded is a texture pack that changes the appearance of the foxes for an anime girl (do not think strange things) which the pack does not exist in it (verified)