It is unlawful for any wholesaler, with the purpose or intent specified in § 2601 of this title, to:
(1) Sell cigarettes in combination with any other item or items of merchandise where any such other item is given free of charge or sold at a price which is below the cost of such item to the seller;
(2) Sell cigarettes in combination with any other item or items of merchandise where the total sale price for all the items included in the sale is less than the sum of the cost of cigarettes to the wholesaler, as herein defined, plus the cost to the wholesaler of all other items included in the sale, including items given free of charge in connection with the sale;
(3) Give cigarettes free of charge, except in the case of specially packaged manufacturers' samples which are designated on the package as not to be sold; and
(4) Make any rebate, advertising allowance, or any other concession by any means or device whatever in connection with the sale of cigarettes, whereby the cigarettes are in effect sold below cost as herein defined, except that any reduction in cost to the seller resulting from any payment or compensation given by manufacturers of cigarettes on a uniform and nondiscriminatory basis for promotional services, and any coupons issued and ultimately redeemed by the manufacturer on the same basis may be passed on to the purchaser without violating this chapter.