I can't speak for the other networks but I know the main reason for the poor VODACOM call quality is VoLTE, it's basically the only cause for sound not carrying over call on either or both sides while the call stays connected, also often causes calls to fail to connect, some phones can disable...
Completion rate is a useless stat as it's inaccurate, the math is flawed as it doesn't take into account other variables such as death or emigration. I know it's not a huge difference in percentage but as it's being as a "true pass rate" it should be more accurate than the other stat it claims...
Then you didn't do your homework, I've done online price beats multiple times at different stores from 2015-2018. You just got 1 of those idiots who don't know their own company's procedures.
https://www.game.co.za/game-za/en/webeatanyprice
They've always done pricebeats for local online stores, but they shouldn't have in this case, their conditions state that should you wish to pricebeat an online store, the delivery fee has to be factored into the price, as takealot's free delivery only applies to orders over R450.
"The temporary spectrum was assigned in April 2022 to help mobile networks cope with the anticipated influx of data traffic on their networks as people were told to isolate themselves at home."