The last time the 36-year-old had spoken to her daughter it was during a brief phone chat after the support act while Olivia had been waiting for Grande to take the stage.
But shock quickly turned to panic as Charlotte learned of the bomb blast from Olivia’s dad and was unable to contact her daughter.
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The friend the teen had attended the concert with was with his family in hospital, but authorities could not tell her where Olivia was.
Told by police to wait for news, but hoping that someone might know where her daughter was, Charlotte made an appeal on various British TV stations for any help in locating her.
“I’m going through hell. I can’t even explain what I’m going through,” she told BBC.
“I need my daughter home. I need to know where she is. A mother shouldn’t have to do this – she’s 15.”