Saintpaulia Optimara Little Moonstone

Bought 4 all very healthy but I left the little plastic collar on them big mistake next day the leaves on this little plant was badly scorched I did see a bit of condensation. On collar dont no if that was the cause or to do with sun anyway I will need to take these of in future little plant is strong but bad scorching on leaves otherwise ok the other 3 don't seem to be as bad as this one .plants all healthy and happy otherwise no complaint delivery great.