Citibank Credit Card Complaint

Citibank Credit card department,

Oklahoma

I am applying for a loan to buy a new house and my loan officer reported to me that there is a delinquent charges more than 30 days on -/-/2016 and 60 days on -/-/2016 for some credit card ending in - that is issued by CBNA and he gave me a phone number -, which I have called and stayed with them for at least 30 mns and they could not find any credit cards that was issued to me using both my name or my SSN or even my phones so they switched me to fraud department which could not find anything either and then I talked to few supervisor in CitiBank who could not help me at all, I do not have any cards and i never had any cards that ended in -, I need help please, my home loan is depenedent on this ... the phone number that was listed on the consumer credit report was