I think the problem is the decal itself is clear, not white.
The logo has a black background but with the decal being clear, the black from the headstock was showing through.
I removed the decal whilst still wet and with order some more film.
It's just a pain because I asked the the supplier for the best option, paid extra for express delivery and printed it at work on our laser, all so I could get it done over the weekend.
I've emailed them in the hope the will give me a good price on the next lot because they gave me dodgy advice.
Shall see how we go, I was hoping to have it all finished this week.
Robbo