The air conditioning was ordered and paid for in D...

The air conditioning was ordered and paid for in December 2019. After several inquiries we were put off again and again and were offered new, more expensive systems that are supposed to be available quickly. Again and again there was only sluggish feedback on the delivery date when asked. After setting a final deadline, we canceled the order in June 2020 and received a notification with a refund. After 4 weeks still no money has been received.
We have now handed the case over to our legal advisors.
It looks very conceptual to us and we cannot recommend this company !!!