New Zealand Post was talking to retailers and other businesses about taking over the provision of New Zealand Post and Kiwibank services.
Postal and banking services would not be affected while the search for a new provider was underway.
However, Ms Lorck said Flaxmere residents needed greater clarity on the shift.
"What concerns me is why Flaxmere is not being kept informed, it's the fear of the unknown and the community deserves more than being kept in the dark, particularly those who are customers of PostShop, which is part of a state-owned enterprise.
"We know there are a couple of local businesses which have expressed an interest as alternative providers because they know it's important to keep the services in the village, but having spoken to one of them, this would be a last resort and more detail is needed."
Flaxmere councillor Henare O'Keefe said he had been assured the PostShop wasn't closing. "One of our retailers is in negotiations regarding taking over the franchise."
Mr O'Keefe suggested there would be "a bit of to-ing and fro-ing" before a final decision is made.