The ignition barrel on my 2012 VW Amarok either fully rotates or turns to ignition position and locks. Jiggling the key in and out, and also using a brand new spare key eventually hits right spot to start. What’s the go?
That’s usually a result of using the wrong key, or of wear of the key or the lock barrel. As your car is relatively new it shouldn’t be wear, but I would suspect that the key is not mating perfectly with the lock barrel. I would approach VW for a solution, perhaps a new lock and keys.