Yes. eSIMAdvice currently lists 15 AlpineSIM Jamaica plans.
The lowest displayed AlpineSIM Jamaica plan is Jamaica · 100 MB · 7 days · 4G, at $0.96.
Jamaica · 20 GB · 30 days · 4G is the current best-value match by displayed price per GB: $4.29/GB ($85.82 in total).
Yes. Eligible displayed prices already include the active AFFINCO coupon where the provider rule applies.