On last night's (November 27) show, 7-year-old Kiki was featured in the Door to Door task, in which contestants had to pick from a line of doors to see if there was a treat behind them.
As Kiki waited behind the yellow door, she could hear her mother's voice. However, the EastEnders star and fellow contestant Eric Bristow - whose son was also behind the door - failed to choose the yellow door.
They only discovered their family members had been behind one of the doors after David Haye and Rosemary Shrager got to see their loved ones by selecting the right door.
Charlie said: "I swear to God, it felt like someone had taken a boot and kicked me in the guts. I didn't even think having a member of the family behind the door would have been an option.
"This is heartbreaking. Yellow's my favourite colour she would have been thinking, 'Mummy would pick yellow'.
"I'm really glad I didn't get the pizza. I'm really glad that I didn't get anything because if I'd sat there and enjoyed something knowing afterwards that she was there whilst I was going, 'This is the best prize', I think I would have felt even worse."
Digital Spy forum member Rachelette wrote on the 'How awful for that child' thread: "I can understand the parents going in and it being their own lookout.
"But for such a small child to hear her mother's voice and look so desolate when she didn't get to see her isn't sitting comfortably with me."
Sycamore agreed, saying: "It was a bit uncomfortable viewing."
Horwichallstars added: "I thought it was a disgrace. That poor little girl, being able to hear her mum and not be allowed to see her. Not entertaining in the slightest."
Some forum members defended the move, insisting that Kiki's family must have agreed to it.