First off @theRaven68. One account per person, yes. One account per household, no. My wife used to play. We both had account at the same poker room. I contacted support before she opened her account and they absolutely gave me the green light for multiple accounts in one household. There are rules to follow, but as long as you do, it is totally no problem to have more than one account per household.
@OP: The 2 accounts will be sticky. One thing I can suggest is to make sure you remain patient and, above all, polite and helpful in your communication with support. If the first account has been dormant since the second one was opened, and, as you said above, there was an inquiry when you opened it, then this will all be proven in the long run.
The thing is, 2 accounts are forbidden and a reason to have your account frozen and your money confiscated. It is in the TOS. Having said that, if you had communicated with support over the 2 accounts way back when, then explain this. People make honest mistakes, and even tho stars can still freeze you because, after all, you did violate TOS, they may opt to let it slide... IF(!) they are convinced that it was an honest mistake. People are people and make mistakes. People are people in support as well. So, stay polite, patient, and comply with all their demands, for ID; for verification etc. Send a detailed explanation of how this happened, and make sure to be very sincere in your apology for YOUR mistake.