eBuyer has split with the whistleblower who made allegations that members of the purchasing team took backhanders less than three months after he joined the firm.
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Mark Wilson joined the East-Yorkshire-based etailer from CCI Distribution in May and made claims to management that members of its buying department were guaranteeing orders in return for kick backs from a number of distributors.
In response, eBuyer then suspended three employees as it investigated the allegations.
Armando Sanchez, chief executive at eBuyer, told MicroScope the probe was ongoing and was unable to share any details but added "some of these things take longer than I would like".
Commenting on Wilson's departure, he said, "Business is a bit slower at this point of the season that we are in so we decided that we didn't need him," adding "he was a good guy".
Sanchez said Wilson "hinted" that some staff had been taking backhanders, "then we did some investigations and put two and two together...obviously we take stuff like this very seriously and you've got to look into it straight away."
eBuyer recently posted £1.6m profits for the year ended 31 December 2009 compared to losses of nearly £4m in the previous fifteen month period ended 31 December 2008, while sales fell to £233m compared to £319.6m.