Yes. eSIMAdvice currently lists 60 Billion Connect Bhutan plans.
The lowest displayed Billion Connect Bhutan plan is Bhutan · 1 GB · 1 day · 4G, at $3.21.
Bhutan · 56 GB · 28 days · 4G · 2 GB/day is the current best-value match by displayed price per GB: $1.67/GB ($93.34 in total).
Yes. Eligible displayed prices already include the active ESIMADVICE coupon where the provider rule applies.