You can make your pre-orders in this form
Bitcoin Payment : 0,022 BTC
Payment Address : 3815vE6j5RHv5vWgvhdEh21gnofJwNEbnc
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Ethereum Payment : 0,74 ETH
Payment Address : 0xe91f4caaa9714a913d695bbed35e0360a72a29f1
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Litecoin Payment : 6,25 LTC
Payment Address : MK4KGwDsdZWMvcmR8gTKL6FSvG1UyCmqpn
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the exchange rate update is done automatically every day