The future of Burgess Hill's main post office is due to be announced later this month.
There were fears the post office in Church Walk would close on October 18 when its lease runs out.
But operator Consignia says it expects the premises to remain open.
A spokesman said: "We are confident a deal will be struck and we will see the continued operation of a post office branch in Burgess Hill, which could well be at the same location as present.
"We hope to finalise our decision in two weeks."
Fears grew when the Co-op superstore, which operated in the same building and ran the post office as a franchise, shut its doors last Christmas.
New store operators B-wise have yet to confirm whether they will take over the franchise.
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