Please excuse me for not responding for so long. This was my first post in the forum and I am positively surprised by your thoughts. A few more details about the situation: - there were already disagreements during the planning phase and we presented our point of view in several emails and escalation meetings. Mostly without any response from the manufacturer. - among other things, we discovered a problem regarding the balcony during planning and in an escalation meeting with the sales management and executive board a technical alternative was proposed to us. Confirmed by us and the technical feasibility was also confirmed. - the planning was so poor that the earthworks contractor, when he wanted to start the excavations, found that the specified height indications were incorrect - during the shell construction we found that 2 walls were produced incorrectly. Based on our hints, the foreman on site shortened the walls with a chainsaw - during the shell acceptance we discovered that the balcony was produced/installed incorrectly contrary to the promises - rejection of the partial payment until clarification - no response from the manufacturer for 3 weeks - after repeated inquiries, suddenly cost increases appear because the planning was so complicated and they should be offset against the damage to the balcony - personal conversation with the former owner (now only managing director together with 3 others) - solutions discussed (financial compensation and completion of the construction this year) - further cost increase. I objected to this cost increase by email (not accepted) - further conversation with the former owner sought. Conversation is blocked. - email from the managing director that work will be stopped until cost increases are signed by us and the partial payment is made - partial payment paid minus a retention - work stopped this week - yesterday an email indicating that next week 6 fitters will continue the work on site. We should reserve rooms (agreed as such) - today an email from the managing director that work will not continue next week if the cost increases are not signed by tomorrow noon. Your opinion?