Robin Hood BBC series on BD - Missing Disc?

[Tichols]

Hey there,
After watching the first three discs, I popped the last one in ready too watch the last 3 episodes, soon to realize that my fourth discs in the boxset, was labelled disc nr 1 :O

Ive written several emails to BBC over the last few weeks and Amazon.co.uk from whom I bought it. And I have yet too hear from any of them, anyone else had this problem?

Thanks,