Kitchen worktop edging (Blackness TN6)

New worktop edging tape, marble colour. Bought recently from B&Q - unfortunately the wrong width. It was displayed with the worktops so I assumed it was the correct width as the size was not evident. However if you have eyes like a hawk you can just make out it says it's 3000mm by 24mm. One length cut off (and included) before realising the mistake.