I need to add my middle name.

I recently joined PPH as a freelancer. I filled all the “ABOUT ME” info correctly except I think I messed up my name. I put my name as “ Sudhir Pangeni ” but when I read Freelancer Support article I realized that it should be the name matching the bank info. I didn’t know that before. I have a middle name as well i.e. “ Sudhir Chandra Pangeni ”. Since there was no space for middle name I did not use the middle name in it. Now I need to change it to my official name.Can you please help me with this?