Section 475C.706 - Duty to return excess tax collected(1)(a) When an amount represented by a marijuana retailer at retail to a consumer as constituting the tax imposed under ORS 475C. 670 to 475C. 734 is computed upon an amount that is not taxable or is in excess of the taxable amount and is actually paid by the consumer to the marijuana retailer, the excess tax paid shall be returned by the marijuana retailer to the consumer upon written notification by the Department of Revenue or the consumer.(b) The written notification must contain information necessary to determine the validity of the consumer's claim.(2) If the marijuana retailer does not return the excess tax within 60 days after mailing of the written notification required under subsection (1) of this section, the consumer may appeal to the department for a refund of the amount of the excess tax, in the manner and within the time allowed under rules adopted by the department.(3) If excess tax is returned to the consumer by the department, the department may issue a notice of deficiency for the excess tax to the marijuana retailer in the manner provided under ORS 305.265.