Technically not free, as you have to pay postage which seems a little higher than one would usually anticipate. However, 100mL of this cologne is around £100 + p&p so it's a decent amount for not a lot of money! @halvor takes credit for this, posted on another forum.
Tried the offer myself and checked out without issue and now have 4 x 15ml bottles on the way, having paid £21 for postage, but the same items retail in box for £100; that's Christmas sorted.
"Dear Benjamin,
Unfortunately, due to technical problems on our website a non – retail product was listed for sale.
We will process a refund of £ 5.30. The refund will show up on your account within 2-3 working days.
We apologise for the inconvenience caused.
Should you have any questions please let us know.
Best Wishes
Sarune Gausaite"
"Dear Benjamin,
Unfortunately, due to technical problems on our website a non – retail product was listed for sale.
We will process a refund of £ 5.30. The refund will show up on your account within 2-3 working days.
We apologise for the inconvenience caused.
Should you have any questions please let us know.
Best Wishes
Sarune Gausaite"
I have recently received an email from them. If you sign up to their site before October 12th and spend over £90 you receive a free sample of cologne #88.