I paid 50% of the purchase price of a ot-810 halftrack like the one in their add.The agreed repair price to bring it to working condition was 10000eu,8 months later they started work on it,16 months later i receive a bill for three times the repair quote. I asked for my money back or return to the original price... no reply. I think they had another buyer all along & just used my money to repair it for another buyer. It is a complete scam & not to be trusted!!!