The 31-year-old recently decided to leave the programme to pursue other career options, but said that her mind was made up when she was instructed to apologise for the scam.
She had to say sorry to viewers in March after bosses on the show admitted that they had fixed a phone-in competition.
According to the Mirror nearly 14,000 children entered the contest which cost 10p but after technical trouble staff used a young boy visiting the studio to pose as the winner.
Huq said: "I was horrified. I couldn't believe it was allowed to happen.
"It was partly because of the scam I made the decision to leave. I'll be sad to go."