Box dye not taking on one white patch

[CSIblonde]

I've started to notice the one, extra fine & wispy white patch by my temple isnt taking the Clairol extra light beige blonde colour any more. Any experts on box dye here who can help? My old £100 every 2months salon trips are out of the question now, sadly.

White hair can be really resistant. You could try opening it up with a little bit of the peroxide first, maybe 5/10 minutes. Then do the colour like usual.