More than a dozen angry customers who bought tickets to a New Year's Eve party at a popular Brisbane pub are demanding refunds and an explanation, after turning up and finding the venue closed on Sunday night.

About 15 people were left high and dry during the final hours of 2017 after buying tickets to the '90s New Year's Eve Party at Alfred & Constance in Fortitude Valley.

The future of the Alfred & Constance is uncertain, with an internal message saying the venue is in receivership.

Rebecca Allard, one of the paying customers, arrived at the venue about 10.45pm with friends only to find the doors were closed.

"We bought tickets about two weeks ago for the event, one of our work friends mentioned a couple of days ago that it may be shut so we checked their website but it was all OK so more friends bought them," Ms Allard said.