It was supposed to be a special treat for Dundee teenagers Casey and Reece Maclachlan – going to see their hero Post Malone at a gig in Glasgow.
But the long-awaited trip turned into a nightmare for the brother and sister when they were “manhandled” by security staff like “criminals” out of the SSE Hydro, accused of trying to tout their tickets.
Reece, 15, is partially sighted and mum Jennifer Devlin said they had bought seating tickets so he would be able to fully enjoy the concert.
Casey, 16, has also just recovered from a bout of viral meningitis and had been looking forward to the show as part of her recovery.
The pair claim security staff crumpled up their tickets in front of them.
Casey and Reece had already gained access to the venue when they were told they needed wristbands.
While trying to find someone to help them, they claim they were “apprehended” by a security manager, who accused them of trying to “spin” their tickets.
Jennifer, from Fintry, is now demanding an apology and an explanation from the SSE Hydro about why her children were treated “appallingly”.
The 35-year-old said Casey and Reece had been given the tickets for Christmas and were very excited about being able to see the Sunflower singer perform in Scotland.
She said: “I’m shocked and disgusted about what happened and want an explanation.
“The kids had got to their seats and were then told they needed wristbands.
“Security claimed they had been attempting to ‘spin’ their tickets – trying to sell them on inside the concert venue. There is absolutely no way they were doing that.
“Why would they try to sell their tickets on to anyone else when they had some of the best seats in the house?
“I’m absolutely furious. My children were grabbed and manhandled and had their tickets crumpled up and thrown in the bin by a security manager.
“They were distraught and Casey was hysterical.
“She has only just recovered from viral meningitis, which left her in hospital for four days last month, and this was something she was so looking forward to.”
Jennifer had dropped the teenagers off at the Hydro on Sunday evening, before heading off for a meal in the city to wait for the concert to finish.
“I then got a hysterical call from Casey to say they had been kicked out and weren’t getting back in,” she said.
Jennifer raced to the venue to find out what was going on.
She said: “I asked to see the security manager and he told me they weren’t getting in.
“He was very rude and just wouldn’t listen. He eventually produced the crumpled tickets that he had thrown in the bin but he wouldn’t let the kids into the concert.
“This was the first time they had been allowed to go to a concert themselves and it turned into a complete nightmare.
“We ended up having to drive home and the kids never got to see the show. Casey cried all the way home.”
A spokeswoman for the SSE Hydro said: “We are sorry to hear about this.
“We would ask Mrs Devlin to get in touch so we can sort this matter out.”
American rapper Post Malone’s latest record – Beerbongs and Bentleys – has been streamed almost half-a-billion times.