(b) If the certification required by this subdivision has been furnished to the purchaser at delivery and accepted in good faith, the burden of proving that the taxes imposed by this article were assumed or paid by a distributor registered as such under this article and passed through shall be solely on the seller.
(c) Where the certification required under this paragraph is not furnished by the seller at delivery of motor fuel, it shall be presumed that the taxes imposed by this article have not been assumed or paid by a distributor registered as such under this article and that the purchaser in such case is jointly and severally liable for such taxes.
(d) If, due to the circumstances of delivery, it is not possible to issue a certification required under this subdivision at the time of delivery of motor fuel, the tax commission may authorize the delivery of the certification required under this paragraph at a time after the delivery of the motor fuel which is the subject of the sale under the limited circumstances it shall prescribe and upon such terms and conditions it shall deem necessary to ensure collection of the taxes imposed by this article and the tax imposed by section eleven hundred two of this chapter.