CSE3100-100 Pricing error

[Malabbey]

Was looking to order a 100 pack of DVD cases (Product code CSE3100-100). You have them listed at £7.65 + VAT (£8.99 inc VAT) but when added to the basket, they come up at £8.99 and then VAT is added again making a total of £10.56 and not £8.99 as advertised :(

Can you clarify the correct price before I order please?

[BigPockets]

I have checked and i cannot find anything.

Price is definately £8.99 inc vat