I passed my initial coding test last Sunday and got my first phone interview invitation with one of the company on Monday. I replied to the phone interview invitation on Tuesday through email. Right after I sent out the reply, I noticed that my email name was "Potatoe Brother" and I was very confused. And I checked my Google profile and noticed that my Gmail name had been changed from my real name to "Potatoe Brother". I immediately changed it back to my real name and was wondering who changed it. I asked my sister, who is an 8-year-old, who admitted that she did it "for fun". Now this is a very unprofessional part of me to have such name and I have not heard back from the recruiter since then (it has been a day). Even though I am not sure if she actually saw my email, I am afraid that I may have lost the interview opporunity due to this. I am going to send out a follow-up email and want to explain this in the follow-up email. What is the best way to explain that?
A little bit more information: I just recently graduated and have been using my college's email for 99% of the time before graduation. Because I will lose my access to my college email, I decided to use my personal email for job hunting. So I was not aware of the fact that the name was changed.
What I need help with: This is really one of those "my dog ate my homework" type of case. Unfortunately, it happened. I am afraid that the recruiter would simply not believe what I said because it is just hard to believe on their part.