Disappointed angry in Somerset.

We researched local companies before giving Four Seasons the job of erecting our conservatory. Work was due to start in March, they gave us a date and wanted the first payment to confirm that date. A couple of days later we were told that due to weather delays of two weeks they would not be starting on that date. Now we have to assume they knew this when they asked for payment....two weeks delay does not happen in just a couple of days. We felt duped, they clearly knew the date they had given us was not doable, they just wanted the money. Work started on April 2nd, it took 9 days for the walls and footings to be completed and the two guys of  DevonYork worked hard and their work was first class. Then three weeks of nothing happening. This was NOT what we were told by the man we dealt with who said all their trades people were inhouse and therefore no delays. Eventually we were told the next stage, erecting the frame and glass was ready to go ahead and they needed the next payment first. So we paid, by this time they had 90% of the total cost. A different man and his son spent three days on this and their work is excellent. But that's it....90 % paid and just two stages completed and now we hear the company has ceased trading. They have our money, we are seniors on a fixed income and cannot afford to lose the thousands we are looking like losing, plus we now have to pay for the job to be completed as well. Disgusted angry and disappointed barely covers how we feel. We also feel sorry for those who have worked on our project as I'm sure they are owed money too. A job that we were told would take three weeks has not been completed seven weeks later. I have named the contractors because their work was very well done and they should not be included in the two star rating, this rating is for Four Seasons only.