Assistance Needed: Correcting Username on SongPop2

I trust this message reaches you in good spirits. I'm reaching out to seek your assistance. Regrettably, I mistakenly configured my username as "service apt in dubai" instead of "methewalvin," and I'm keen to rectify this error. If any of you are familiar with the process of changing usernames on SongPop2, your guidance and support would be immensely appreciated.