I'm so fed up, bought paint to do up our 16mth old sons bedroom did the whole room blue and then added green on the bottom half ready for his Thomas the Tank stickers but where the green edge is all the paint keeps bubbling up! Have phoned B&Q and they've agreed to refund the paint but that dosen't help get the room finished. They've said we've done everything right and sanded the edge and tried again and it's just the same again.
Can't understand it, we did exactly the same in our little girls room last year using Dulux and it's fine.
I've no idea what to do now?????