The State Government still does not have a handle on how many children of families on 457 temporary work visas are being educated in the public school system.
School principals have been instructed to write to parents believed to be holders of temporary work visas in a bid to establish their visa status as the Government continues to grapple with the financial implications of a Budget decision it had to water down and delay.
In the August Budget, the Government announced it would raise $17 million in 2013-14 and $120 million over four years by imposing a $4000-per-student fee on about 8600 children of temporary work visa holders attending public schools.
A month later, Premier Colin Barnett watered down the plan, delaying its implementation until 2015 and halving the fee to $2000 for second and subsequent children in the same family.
It also emerged the number of affected children had been overstated by more than 4500 students.
Letters from principals, obtained by _The West Australian _, ask parents to verify their visa status "as a matter of urgency".
A parent on a 457 work visa, who did not want to be named, said the tone of the letter was "aggressive" given law changes to facilitate the fee had not yet been passed by Parliament.
"I don't believe that we are under any obligation to provide this information at the moment," the parent said.
While the Education Department records visa status on children's initial enrolments, it has no mechanism for tracking parents if they move to other visa types or permanent residency.
A spokesman for Education Minister Peter Collier denied the Government was considering scrapping the fee, given the apparent difficulty obtaining accurate information.
Asked if the Government had an accurate understanding of the number of children in the system, the spokesman did not answer, instead saying schools had been asked to write the letters to verify the status of parents.