If an employer files an amended separation report or otherwise raises a new issue as to the employee's eligibility or changes the wages or weeks used in determining benefits which that results in a denial of benefits or a reduction of the weekly benefit amount, the benefits paid prior to the date the determination is mailed shall do not constitute an overpayment. Any benefits received after that date to which the claimant is not entitled pursuant to a new determination based on that new employer information shall constitute an overpayment.

If, during the period a claimant is receiving benefits, new information or a new issue arises concerning the claimant's eligibility for benefits or which affects the claimant's weekly benefit amount, no benefits may not be withheld until a determination is made on the issue. Before a determination is made, written notice shall be mailed to the claimant and other interested parties, which shall must include the issue to be decided, the law upon which it is based, any factual allegations known to the bureau, the right to a fact-finding interview, the date and location of the scheduled interview and the conduct of the interview and appeal. The fact-finding interview shall must be scheduled not less than 5 days nor more than 14 days after the notice is mailed. The bureau shall include in the notice a statement notifying the claimant that any benefits paid prior to the determination may be an overpayment under applicable law and recoverable by the bureau if it is later determined that the claimant was not entitled to the benefits. If the claimant does not appear for the scheduled interview, the deputy shall make a determination on the basis of available evidence. The deputy shall make a prompt determination of the issue based solely on any written statements of interested parties filed with the bureau before the interview, together with the evidence presented by interested parties who personally appeared at the interview. Upon request and notice to all parties at the interview, the deputy may accept corroborative documentary evidence after the interview. In no other case may the deputy base a decision on evidence received after the interview has been held.

A. This subsection does not apply when the claimant reports that, in the week claimed: