The actually extended my refugee status. But on their response it state that i will need to apply for further leave. I'm just not sure what application to use

Hi to everyone, I have a question that has been bothering me Basicaly 3 years ago I applied for my indefinite but it was refused on the ground of conviction But I was granted 3 years limted leave to remain, which will run out in october. But I'm not sure what application to you use for renwal of my ...