Username question

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2014 CX-5 GT w/ Tech
About 5 years ago I was looking into getting a CX-7 and had signed up for this website with the username "Seminole". Fast forward to this year and I ended up buying a CX-5, and when I went to register, Seminole was already taken. I had completely forgotten that I had signed up with that name in the past, so the name was taken, and I just added an S onto the end and made a new name under Seminoles. Is there any way to have that old account deleted (since I've already set everything up under this name) and get my current username changed to Seminole?
 
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