Guys, I’ve recently had 2 new scorpions fitted on the front and put the more worn ones on the rear, now I’ve no tyre pressure display, is there a way to reset or has the tyre company messed up?

How far have you drove? They may have swapped them around. I think it takes about 30mins of driving above a specific speed for the sensors to be re-detected if they have moved around.

You can also check the valve stems are metal and have the provision for a socket to undo the sensor - If you have rubber valves in those wheels that indicates the tpms sensors may not be present anymore.