Capital One Credit Card Complaint

Capital One Credit card department,

Credit determination Florida

Capital One did not update my new address or phone number correctly. They failed to call or send my statement for three months. The reason I found out was because I was denied a loan for purchase of car. I called Capital one, and they admitted the above and stated they would wave late fee, and contact the Credit people to update that the delinquency was their error. I paid the bill, and they said I have to follow up in 10 days. My question is will my credit be justified, and how long.