Two convenience-store chains yesterday dismissed demands by hawkers to ban promotional discounts on newspapers and magazines. Circle K and 7-Eleven said their schemes offering discounts of between 50 cents and $2 on newspapers and magazines would stop at the end of the month. But the hawkers' alliance, which met last night to work out pressure tactics, said this was not enough and the chains should promise in future to respect the prices of publications. The alliance represents about 5,000 newspaper hawkers. But a Circle K spokeswoman said the promise was impossible to make. 'We don't know what will happen in future. If and when we decide to introduce a similar promotion again, it will be made as a business decision.' A 7-Eleven statement said the company was operating under fair competition and offering customer service. Under the three-month scheme, which started in October, selected phone service customers of Pacific Century CyberWorks can present bills or membership cards at 7-Eleven stores and receive a $1 discount on a magazine and 50 cents on a newspaper. Circle K has been offering a $5 discount coupon - a $1 discount on a newspaper and $4 for two magazines - for every $100 customers add to their Octopus cards in its stores. Wong Chin-pang, an alliance representative, said last night that newspaper hawkers would team up to prevent any unfair competition. He also said they would appeal to newspapers and wholesalers to punish those selling papers at a lower price or offering special gifts.