LONDON, Dhu-AlHijjah 7, 1436, Sep 21, 2015, SPA -- If you donated cash to survivors of the Nepal earthquakes this year, you may want to consider exactly how - or if - your money has been used, Reuters reported. Sixteen of the world's largest disaster relief charities have revealed to the Thomson Reuters Foundation that they are spending up to a sixth of funds designated for Nepal on their overheads rather than in disaster-hit areas, when they are using local charities to do much of the work. Affected communities have denounced the response to the twin quakes in April and May as too slow, with some claiming to have seen scant evidence of nearly $475 million raised through U.N. appeals. -- SPA 03:29 LOCAL TIME 00:29 GMT www.spa.gov.sa/w