A CATHOLIC school has threatened pupils with detention if their parents fail to pay a $100 sports fee.

St Patrick’s Marist College in Dundas sent parents who had not paid on time a warning letter dated Friday, May 8, when the payment was due.

“Should payment not be received by Friday, May 15th, your child will be issued with a Wednesday afternoon detention,” the letter says.

A concerned mother who did not wish to be named for fear of her child being targeted said she was shocked to receive the letter.

“I just don’t think it’s fair to give the kids detention because of a parent’s oversight,” she said.

The woman said she knew of other parents who were also incredibly angry.

“It wasn’t even in a sealed envelope, all the kids have read it,” she said.

media_camera Students involved in school sports. media_camera Letter to parents who failed to pay a sports fee at St Patrick's Marist College in Dundas.

“That’s not fair to put the stress on the kids.”

The mother said the letter was “inappropriate” and there was no mention of options for parents who may have trouble paying the fee.

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The school’s principal Angela Hay said it was the first time the school had sent these type of letters.

She said 29 per cent of parents had failed to pay the fee on time.

“So the letter went out saying they would get a detention, it’s not a normal process,” Ms Hay said.

“We did have 70 per cent of those fees paid after that letter was sent out.”

Ms Hay said some parents had complained.

“I am happy to listen to what parents have got to say and nobody’s done detention. We won’t be issuing these detentions, I will be looking at a different way of doing it.”

Ms Hay said a second letter was sent asking parents to contact the school if they were in financial difficulty.