I've been offered a job at a new organisation. The salary was advertised as £xx-£xx with no suggestion of starting at the bottom of this only. In my current job I am on the mid point in this band and have requested that they could come in slightly above. I have told them exact current salary. They offered the bottom of the scale (so a big chunk under my current salary). I sent a fairly standard negotiating email. They have responded asking for my last three pay slips.
I am honestly quite shocked at this. Firstly I guess it is questioning my honesty and integrity, second it is overlooking my skills and experience for the role and finally it feels overly intrusive.
A quick Google seems to suggest it is unethical but not illegal. I was really keen on the role but this has massively put me off. Thoughts? Advice?