A single mum claims her son's school have threatened to put him in isolation if she does not replace his new £50 shoes - because they look like trainers.
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Kellie, who work two jobs to support her son, is adamant she read the uniform guidelines thoroughly before shelling out for her teenager's shoes.
However, when he turned up to lessons, teachers at Severn Vale School in Gloucester said the footwear was unacceptable and he would have to change into a pair provided by teachers.
Colby, 14, was told he would be put in isolation if he did not change his shoes, his mum claims
Ms McGowan said the experience was humiliating for her son, who takes pride in his appearance.
"I was told by the school I would have a week to replace his shoes or he will be put into isolation," she told Gloucestershire Live .
"They are saying they look like trainers. It does not tell parents in the letter we received that they would be a problem.
"These are part of the Kickers school shoe range and I have had confirmation from them that is the case.
"As a single parent I don't have another £50 to replace them. It is ridiculous.
"And why are the school spending money on shoes for children who turn up in footwear they say isn't correct?"
Kellie, who work two jobs to support her son, is adamant she read the new uniform guidelines thoroughly
A letter dated August 22 from the school says canvas shoes, boots, plimsolls, training or open-toed styles should not be worn.
Pictures are provided of 'acceptable' and 'unacceptable' designs, with a pair similar to Colby's on the former list as long as they have no colours or logos.
Parents were warned there will be a consequence if their children turn up wearing incorrect uniform.
The school said three letters were sent out, with the first one in May, detailing the changes.
Teachers at Severn Vale School in Gloucester said the footwear was unacceptable
Kellie has discussed the matter with the school and a resolution has not been reached.
Headteacher Richard Johnson said: "With regards to shoes, we told parents that we expected school shoes to mean school shoes; trainer-style shoes would not be acceptable.
"We also told parents that if a student came to school in unacceptable shoes we would replace them with a pair provided by the school.
"The overwhelming feedback from parents has been positive.
"Most have found that buying school shoes is significantly cheaper than buying branded trainer style shoes. They have also commented that the students look much smarter."