Hello , I was woundren if someone could be able to answer me on my question . So my question is , how do retrive or how do I get prize from Achievement collection ?

If you're asking about achievement prizes for those achievements that have them, you'll automatically get them when you get the achievement.

Some achievements need to be triggered. If you check the [topic not found], you should be able to find out how to trigger any achievements you've earned that have prizes.