BITING into a KitKat, Saima Ahmad was shocked to find a solid block of chocolate instead of a wafery crunch. Now she wants justice.

The 20-year-old law student from London is demanding Nestle compensate her with a lifetime supply of KitKats, ITV news reports.

Ms Ahmad, who bought a pack of eight KitKats for £2 ($4), is threatening legal action if she doesn’t get her demand. She’s backing up her claim of “monetary and emotional” loss over the incident by quoting case law going back to the 1930s.

“The truth of the matter is; manufacturers owe a duty of care to consumers,” she wrote in her letter to Nestle.

“The specific duty you owe in consistency in your manufacturing process. The failure to take due care in the manufacturing process resulted in a product being defective.

“As a result I feel as though I have been misled to part with my money and purchase a product that is clearly different from what has been marketed by Nestle.

“The loss I have suffered is of monetary and emotional significance.”

The Kings College student told ITV she was “trying her luck” but said “if you don’t ask you don’t get”. “They go about advertising the unique concept of KitKat, but I’m so disappointed by what I have purchased,” she said.

“Clearly, if I wanted to purchase a confectionery item that is purely chocolate, I would have purchased a bar of Galaxy,” she said.

“I wouldn’t rule out taking this further if Nestle do not apologise or compensate me adequately.”