As @Polyphemus already mentioned, your username was ‘jacobklimek’ when you created the ‘Any Advice?’ topic, asking if it would be possible to have your name changed to ‘Jacob_2000_Lol’ (May 16th, 2018). That same day you messaged me in private to further discuss the name change, which I then forwarded to the higher-ups.
Well over a month had passed, when on June 29th, 2018, you were contacted by ‘CptJamesHarry’ to grant your wish to have it changed. I do not know what has been discussed between you and ‘CptJamesHarry’, but considering your username had shortly after been changed to ‘Jacob_2000_Lol’, I can only assume this was done as you wished for.
You can find all your private messages on your profile page. Click on ‘Messages’ at the top and they will all be listed by date. On the left you can select ‘Inbox’ (default), ‘Sent’, or ‘Archive’. You should be able to find what you are looking for there. If not, contact me in private so I can share what I have.
For all I know, you got the username you wished for. If you do however still feel that your username is not what it should be, shoot us a PM.
Edit: Changed topic category