Sorry. We have had to close our Calais collection point due to a massive reduction in the amount of wine you can take back 'UK duty-free' to England, in addition to travel restrictions due to Covid.
Before 2021, you could take back as much wine as you like, for your own use. After Brexit, the UK Government has imposed a limit of 24 bottles of wine, plus 12 bottles of sparkling (or some spirits). Here is the new allowances page on the UK Government website. (The old allowances are the same today for 'Arriving in Northern Ireland'.)
We used to keep stock at the depot which is 20 minutes by car from the ferry port or Eurotunnel.
In France, you save £2.23 plus VAT (£2.68) per bottle by not having to pay UK duty, and £2.86 (£3.43) for sparkling wines.
Wines bought in France and taken to the UK without paying UK duty have to be for your own use and not for resale.