The Tanifa finished seventh at the 2013 World Championships in Auckland but failed to qualify for the 2015 event in Saskatoon.
This year's tournament in July is open-entry provided teams can pay their way to Whitehorse, Yukon.
Samoa player-coach Duane Jerard said they're still trying to find sponsors but the signs are not good.
"At this stage we'd probably have to say we're not going to make it and we're going to have to target the next one," he said.
