We are very sorry you feel so upset about your experience. As a contractor, we feel as though, as a client your perception of how the completed job would look would match the final product of a , "normal wall", not to that of tiny house specifications.
We preformed the job to the best of our ability given the unusual measurements and design on the home. We were upfront about filling your hollow still framing as much as possible without requiring trimming and providing a full seal and vapour barrier. As a contractor we also feel we went above and beyond to make additional visits to your home per request. Each time we visited the site we tried to comply with every new request, and left after confirming you were happy.
With regards to the bill, it is our policy that jobs are paid in full upon the day of completion.