Cadeler interview questions

A 45 min initial interview was straightforward (although I had to use annual leave as it had to be in work hours). In advance of a second interview they requested I do two tests and a presentation to be submitted to them which would be followed by a 1.5hr interview. In addition they wanted to contact my references prior to sending a job offer. Frankly this is ridiculous and certainly unusual in my experience. They still had not confirmed compensation after the first interview. I emailed to ask and it was around £6k less than my current salary (which I had already told them) so I withdrew myself from the process. Totally untransparent of them not to mention this in advance when we discussed salary or on the advert before using my annual leave, Also with 20-25% of salary being made up of a discretionary bonus you run a risk of getting alot less than you bargain for.