Capital One Credit Card Complaint

Capital One Credit card department,

Overlimit fee Maryland

In -/-/- my credit card was reported over the spending limit and i lost - points on credit score the problem is that i never went over my limit and call into Captial One and it was investagated 3 times and they came back and said yes it was an error on there part and could n't correct it for up to 60-90days ... I was in the process of buying my house for my children and i and should not be punish by losing my house and loan because of an error on there part. I call for 3days and keep getting the run around this is not best practices at all not to mention that they didnt report me in -/-/- at all and had to update that information on -/-/-. Im truly upset and surprise that a company could do this and nothing be done to fix my problem ASAP