Then if South Africa loses England, they will be at the top of the group with 5 points. But if England won in that match, South Africa and Afghanistan will finish the group stage with 5 points. Then trust the net run rate. This is very certain that Afghanistan is excluded. Their run rate – 1.5.
If Afghanistan goes to the semifinals, South Africa will have to lose at least 20 runs (if in the name of chasing 5 runs), which is almost impossible.