(a) It is unlawful:
(1) For any brewer or manufacturer, or any other person, firm or corporation engaging in the business of selling nonintoxicating beer, ale or other malt beverage or cooler to a distributor or wholesaler, to discriminate in price, allowance, rebate, refund, commission, discount or service between distributors or wholesalers licensed in West Virginia. "Discriminate," as used in this section, shall mean granting of more favorable prices, allowances, rebates, refunds, commissions, discounts or services to one West Virginia distributor or wholesaler than to another.