We just got a granny cable and nowt else, bought a second hand Mennekes 'Mercedes' branded one off fleabay rather than opting for a dubious third party manufactured one on Amazon, then a masterplug branded charging case from Argos for £11.99 a whopping £1 cheaper than Screwfix and other places.
In fact, I advise anyone to check some of the deals out on eBay that are after a type 2 charging cable....shopping around you can get many 32a Mennekes cables of various brands including 'Kia' and 'Mercedes' for around £70-£80.
We got one in pretty good condition, a 32a 7.5m for £80, obviously a few scrapes here and there to the housing of the charging ends, and a little grubby along the length of cable which cleaned up to near mint with 20 minutes of elbow grease with some antibacterial wipes, but way more trustworthy and cheaper than third party ones.