Department store group Debenhams has asked suppliers of its own brand products to cut their bills by 2.5% in the face of a slow December for many retailers.

In the letter seen by the Financial Times, the chain's chief financial officer Simon Herrick, said: “As we will mutually benefit from the growth of Debenhams, we are now seeking a contribution from our suppliers to support our commitment to on-going investment.”

The company’s investment plans include a £25m refurbishment of its flagship store on Oxford Street and upgrading its wider store estate.