Your APR increased outside the allowable tolerance. You should have disclosed and waited 3 business days before closing if provided face to face or 6 days if mailed.
This is a violation of 1026.19(a) and you cannot cure the violation after the fact (loan closed). You need to retrain, revamp procedures, document and move on to the next opportunity.
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The opinions expressed are mine and they are not to be taken as legal advice.