Customers in Oxfordshire could lose their voice in the fight to maintain good postal services, a consumer group fears.
The county's Post Office Advisory Committee has been abolished under changes to the national postal service.
The Post Office Group, including the Royal Mail, Post Office Counters and ParcelForce, becomes a public limited company on March 26.
Dozens of local advisory committees, including Oxfordshire's, will be replaced by nine regional councils.
The county's postal service users will now be represented by a council based in Stoke-on-Trent.
Oxford Consumer Group chairman Michael Hugh-Jones said he feared the county's voice would be lost as the new regional council took over.
Until this week, the Oxfordshire POAC relayed local complaints direct to Royal Mail managers.
Mr Hugh-Jones, of Headley Way, Headington, Oxford, said: "We are rather worried that our local post office problems will not be properly discussed in future.
"Now the POAC has been abolished, there will be just a few regional ones covering large areas which may or may not include Oxfordshire. I am concerned that the people who use the postal services here will not have a proper voice."
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