Update what my reported previoursly:

I´ve ordered and paid S19 pro in Feb. 2021 for the batched in April. Several times I chat with them, it´s very friendly but I cannot get a date when the miners are going to come. I was told by the end of April that they´ll give me an official message per Email, sofar nothing received.

The price of currently available miner is much higher than miner in future trading. Therefore a middle distributer could think they were able to benifit from the price difference by cancel the order when the "future miner" becomes "current miner". And they only need to pay back the price for "future miner". Hopely miners.de keep being a honest trader.