When you click on Get "83% off" or "Get Started" it will bring you to the signup page. Underneath the 3 offers/prices it says Coupon applied - If it is not 39 months for €1.67 per month/€64.99 click coupon applied and enter the code 3PLUS3
With VAT added it works out at €79.94 or €2.04 per month if you choose Ireland.
You can choose U.S. @ 0% Vat but I only saw that later.
This is definitely one of the best deals for a VPN that I have seen.
Thebestvpn.com rates it as number 2 out of 78 VPNs - https://thebestvpn.com/reviews/surfshark/
VPNMentor.com gives it 4.8 out of 5 - https://www.vpnmentor.com/reviews/surfshark/
If you shop while using Surfshark this black friday you can claim up to 70% back on Topcashback UK - https://www.topcashback.co.uk/surfshark/
60% cashback with Quidco - https://www.quidco.com/surfshark/
Your plan includes