Spar managing director Debbie Robinson has personally written to David Cameron and senior cabinet ministers protesting caption>against new Sunday trading plans, Retail Express has learned.

The symbol group boss identified Sunday trading changes, living wage and business rates as major barriers to growth for the convenience sector during Spar’s own-brand media update.

Sunday trading Spar UK managing director, Debbie Robinson

Robinson told Retail Express that she has written to the Prime Minister, small business minister Anna Soubry, and chancellor George Osborne calling for further examination into the repercussions of extended opening hours on Sundays.

“I wrote about how it will affect retailers and called for further consultation into the economic and social impact on communities,” she said.

She added Spar is working with the ACS to campaign against Osborne’s decision and had so far received a response from Soubry on the matter.

“It’s like playing a sports game for years and then suddenly the rules have been changed,” she said. “The Government need to understand that small businesses really are the lifeblood of the economy and how it will damage retailers.”

The MD’s actions follow a threat from Conservative backbenchers to rebel on the changing laws.

Sunday trading Conservative members: Fiona Bruce MP and David Burrowes MP

Retail Express spoke to Fiona Bruce MP, who fought against the extended hours three years ago during the Olympics. The MP for Congleton said the Government needs to respect the working lives of the public. “The further extension on Sunday trading by local authorities adds to the pressure of people having to work on Sundays,” she said.

David Burrowes MP for Enfield Southgate told the London Evening Standard that Osborne should expect a “humiliating defeat” if he tried to force the legislation through.