HelloFresh Data Architect interview questions

The whole process is highly stressful with poor communication. Initially was told that it will be a 3 step process. But in the middle was told that they introduced a 4th step. Recruiters totally bungled up the communication and requested me to prep for a coding interview with any of the languages along with testing and SOLID principles. But none of the above was ever asked in the so called "Coding interview". Instead, was asked about "Data modelling design" question and "Data pipeline" related questions. Honestly spent a lot of time in preparing for the coding interview and was totally suprised by this total miscommunication by the recruiter. They could have easily rejected me after the 2nd level instead of wasting my time.