Changing of username

Would it be possible to change my username? I was thinking along the lines of Teddie369? Would be much appreciated.

yes, give us your top three options and we will check that they are free in order.

Thanks, I also sent an email to the Web support email. After posting since I thought I was supposed to do that.

My top 3 options are
Teddie369
Teddy369
T3dd13

Thanks