You need to register with the police after purchase, foreign websites say that you don't need to show your passport in 2024. How to correctly buy a SIM card? Or is it possible to handle everything at the airport? As for tariffs and the operator, it's clear, did you download the MTS app?
At the airport at the MTS exit. If you do it there, no extra actions are needed. If in Windhoek - there will be a separate quest
Yes, I already did that )