Yes. eSIMAdvice currently lists 17 Redsim South Sudan plans.
The cheapest Redsim South Sudan plan is South Sudan · 1 GB · 7 days · 4G, at $14.71.
South Sudan · 30 GB · 3 days · 4G · 10 GB/day has the lowest price per GB right now: $10.63/GB ($318.78 in total).
No coupon is applied to these prices right now.