I used to work for Bisley making these and the many other cabinets. Many of them get dented on the production line and everybody is told to accept them. Cheap steel that’s easily damaged however if you get a decent unit they’re pretty good
I bought the black version from Ryman (via Amazon) for around £68, so this is a good deal, as long as it does not arrived damaged!! It took 4 attempts, before before I got one that was acceptable. Dents on the top of one, dent's on the sides of the other two returns. Must have cost a fortune in delivery cost overall. Other than that, it is a great cabinet and I have matching 5 drawer unit to store all my bits and pieces in.
Happened to me before. Badly dented.