Door?

The plastic on my whitenight 44aw tumble dryer that holds the latch pin in snapped I bought a replacement door latch and spring. I had been using it for a while with no latch it stay almost closed apart from the top of the door as long as it wasn't a full load in there. I have now put the new door on with the new latch, pin and spring but the latch does not seem to work I'm unsure if I have put it together properly but can't find any videos to help. It's like the latch at the top that puts pressure on the button inside is pushing the door open. Help me please.