After two devices were wrongly delivered in the fi...

After two devices were wrongly delivered in the first delivery, exactly the same (wrong) devices came again the second time .......
Addendum May 5th: After "only" four weeks a real device was delivered - but only one. The waiting time - now 7 weeks - continues.
One device is still missing on June 14th. The air conditioning is not working.
The waiting time is now 3 months.