TrueLayer Senior Backend Engineer interview questions

I was given a take home challenge to complete. I got the impression that it was reviewed by an inexperienced developer. A lot of the feedback was factually incorrect. For example, they claimed my unit tests were not actually testing the code. This could easily be proven false by changing any of the logic and seeing the unit tests fail. Even more bizarrely I was given negative feedback because I did follow SOLID principles. The feedback I received from the reviewer came across as rude and condescending. I would like to think that they didn't intend for it to sent to me unfiltered. It was disappointing to put time into completing this challenge and have it dealt with in such an unprofessional manor.