I was reading a thread on coolant problems and there were recommendations to use only VW 13 anti freeze and distilled water.

Ok so looking online for 1litre of VW group antifreeze there are VW evo12 with a date of 17 02 20

The date on the bottle is this a use by date or a production date

G12evo has superseded g13, I believe. Date will be a production date, I expect, if it doesn't say 'use by ' or 'expiry date'.

Thank you, 13 to evo12 seems counter intuative, don't you think?

Yep

https://www.ebay.co.uk/itm/303185988891 That's what I use in my Touareg