What type of shelving is it? If the brackets can work with it, as above I would try to get the plug in to the brick behind the plasterboard and use that to take the weight rather than the plasterboard itself. If that's a no go, hollow wall anchors are good (as above, again), but they are long, so you will need to drill out some of the masonry behind the plasterboard.
What type of shelving is it? If the brackets can work with it, as above I would try to get the plug in to the brick behind the plasterboard and use that to take the weight rather than the plasterboard itself. If that's a no go, hollow wall anchors are good (as above, again), but they are long, so you will need to drill out some of the masonry behind the plasterboard.
Dot and dab is a shit show really isn't it?