In a letter to members, Federation general secretary Colin Baker wrote: “It is inappropriate and unhelpful to lobby the OFT for the amendment of the Post Office agreement until the Federation has put in place a structure that will better suit members.”
He questioned whether the ACS’s actions were in the best interests of independent subpostmasters.
ACS spokesman James Lowman said: “ACS has been delighted at the support we have received for our case to the OFT.
“This support has come from MPs, various lobby groups, and most importantly from both independent and multiple subpostmasters. There is clearly an appetite for changing the contract and making it fairer and more in tune with the needs of the customer.”
Lowman said the ACS was hopeful about achieving real change, adding: “If we are successful, we firmly believe subpostmasters will benefit enormously.”
Baker called on the OFT to consult him about any changes it wanted to make to the Post Office contract.
He added that the Federation was putting together its own submission to the OFT.