Inocent spouse relief and citizenship

[Anarabelo 0]

I had my citizenship interview today and I could not take the oath because my ex-husband owes money  to the IRS. I applied for the n400 in March, weeks later I received a letter from the IRS saying that I owed 2500. My current husband said that he wasn’t going to pay and my ex should be the one paying for that  because in 2015 I didn’t  work and all expenses were to be paid  by   him .

 So we decided to  apply for the innocent spouse relief in August. my accountant said that would take 4-6 months to get a response. I didn’t expect  my interview was going to be scheduled before we had an outcome from the IRS .  when I was asked if I owed money to the IRS I had to say yes and I explained that this debt only came to my attention after I applied for citizenship and I didn’t get  an answer from them yet . The officer took my fingerprints, updated my travels, changed my name, but in the end she said that She needed  to submit my innocent spouse relief to her supervisor and should   expected a letter from her in thirty days . my question is. Is this a difficult problem to solve? What should I expect in this letter? Are they going to deny my citizenship ? If not how long do I to wait to finally have my oath ceremony ? Thanks in advance