Fans and supporters of Mandrake got a shock over the weekend when some people buying, or contributing to, the open source company found their credit cards had been overcharged by a factor of 100. Mandrake asked customers to use PayPal while it sorted the problem out.

One open source fan and Register reader claims that a silver membership worth $132.00 was charged to his debit card for a cool $13,200. He says he is still waiting to hear back from the company.

In a statement the company admitted there was a problem with payment software from Natexis. The bug in Natexis software treats cents as dollars, or multiplies every amount by 100. In May, 261 Mandrake customers were affected.

The system is now up and running properly and Natexis is talking to the banks so anyone who overpaid should get a refund soon. ®

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