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Your post is a bit confusing. You state that it's NOT your account and EQ rep told you that it's being reported as an "individual" account. Then at the end, you refer to the CA possibly telling you OOPs, mistakingly reported it as an individual accout.
Are you saying that this is your husbands individual account alone, and should be reported as his only?
Do you mind telling us what the account is? Credit card? Did he list you as a Authorized user? If so, your name wouldn't appear on the invoice anywhere. Rather, just on the account info that you hold a card.