A little help from the wise ones please

[Batfastard]

Hi. Had noticed the lid on my top case never seemed to close properly, driving my ocd mad lol. Checking to day I noticed one part of the locking mechanism was not working. So, went to remove the inner section on the case but for the life of me I cannot work out how to get it out. Have removed all the screws that I can see but must be missing something. Seems to be secured at the handle side. Any ideas?