The Post Office is hosting a drop-in forum on proposed changes for its Peterborough City Crown branch.
The changes would see it close the main Peterborough city centre store in Cowgate and open a new branch in WHSmith in Bridge Street.
The forum will be held on June 15 at the Peterborough Museum and Art Gallery, starting at 3.30pm and running through until 7.30pm.
People are welcome to call in when they wish between these times.
The proposals include extending opening hours for customers, including Sunday opening.
Public consultation on the proposals runs until July 6 and customers can take part by phone, online or by post.
The proposals for Peterborough are part of nationwide changes the Post Office is making to help secure the viability of its services.
Roger Gale, general manager of the Post Office Crown Network, said: “We are committed to keeping our services on high streets which we know is hugely important to people.”