Charges and countercharges of border incursions and protection of fugitives led to an unsuccessful Bhutanese mission to Calcutta in 1852. Among other demands, the mission sought increased compensation for its former Duars territories; instead the British deducted nearly 3,000 rupees from the annual compensation and demanded an apology for alleged plundering of British-protected lands by members of the mission. Following more incidents and the prospect of an anti-Bhutan rebellion in the Bengal Duars, British troops deployed to the frontier in the mid-1850s. The Sepoy Rebellion in India in 1857-58 and the demise of the British East India Company's rule prevented immediate British action. Bhutanese armed forces raided Sikkim and Cooch Behar in 1862, seizing people, property, and money. The British responded by withholding all compensation payments and demanding release of all captives and return of stolen property. Demands to the Druk Desi went unheeded, as he was alleged to be unaware of his frontier officials' actions against Sikkim and Cooch Behar.