Miranda Kerr has allegedly been dropped as a Victoria's Secret Angel because of her "difficult reputation".The Australian supermodel, who is married to British actor Orlando Bloom with whom she shares two-year-old son Flynn, has been let go as one of the main faces of the lingerie brand after her $1 million, three year-contract "was not renewed."A source told UsMagazine.com that the 29-year-old beauty "has a difficult reputation" and suggested it was the main reason she will no longer walk the company's star-studded annual catwalk show wearing a prestigious pair of angel's wings, an honour reserved for just a handful of the brand's top faces.Another source indicated the brunette model is "not a big seller for VS", compared to its other Angels like Alessandra Ambrosio, 31, Candice Swanepoel, 24, and Adriana Lima, 31.Miranda will reportedly still walk in the company's runway show later this year and will also appear in its catalogue.The source said: "They can still use her for catalogue, where she will get a day rate, but she doesn't have to be an Angel to do that."Insiders also told People.com: "She can be difficult at shoots and appearances. She's not very timely. She's standoffish with the rest of the girls."But one added: "If Miranda and Victoria's Secret part ways it's not, because of her behaviour. It's purely contractual. She'll be coming back for the show but it's unclear if she'll be in future campaigns. But she is definitely one of the most popular models and in high demand."Â Executives from Victoria's Secret did not deny that Miranda's contract has not been renewed, but chief marketing officer Ed Razek insisted he has already invited her to walk in the 2013 runway show in New York in November.He said: "We have no plans to stop working with her."Other Victoria's Secret Angels include Lily Aldridge, 27, Karlie Kloss, 20, Doutzen Kroes, 28, and Erin Heatherton 24.