Well, thanks for all your comments.
However, returning to the original point - there are two of us in the IT Dept. We are responsible for over 500 laptops/PCs between us plus 6 servers, many dozens of printers and data projectors, smartphones, video editing, graphics work, music technology, creation and maintenance of the website...I could go on.
In short, we are very busy yet we are being forced into taking on PAT testing as well.
Argue as we might, due to general ignorance of management regarding IT and technical issues, we are getting nowhere.