I apologize if we’ve caused any confusion! We try to answer all of our support emails within our 24-hour guarantee, as LakeRat mentioned, and we are a little slower on weekends when we don’t have as many people working. I can see that the LifeHacker100 promo code was correctly applied to your account, but the $9.95 charge was because you registered a domain. LakeRat actually explains this quite clearly in this thread :
If you have any additional questions/concerns, please don’t hesitate to ask!