Yes. eSIMAdvice currently lists 11 Mood Guyana plans.
The cheapest Mood Guyana plan is Guyana · 500 MB · 1 day · 4G · then 512 Kbps, at $3.99.
Guyana · 10 GB · 30 days · 4G has the lowest price per GB right now: $4.65/GB ($46.49 in total).
No coupon is applied to these prices right now.