Here's a link for the new Columbus 2019/2020 map update that's now available to download: http://infotainment-cdn.skoda-auto.com/base/maps/HIGH12_P177_EU_201920.zip
Alternatively you can use the Skoda update portal and enter your VIN here: http://updateportal.skoda-auto.com/en-GB
The download is some 25.4 Gb, so will take a while!