On a cruise to Noumea and needed an eSIM as I'm staying here for a few days.
Complete in this order:
1) Sign up
2) Find the coupons area type EASTER20
3) Fund account with 20USD or more and bonus will be applied to your balance.
After this I then had success redeeming a referral code (picked one from Reddit) for a bonus $5 credit.
I've used Roamless on two trips so far, to China and Indonesia. It worked well both times. For my needs which is light to moderate data usage while on holiday it's been ideal. Whenever I've compared Roamless to some of the more popular eSIMs, it turns out to be cheaper for my purposes, and any credit that I don't use, I can keep for my next trip. Recommended.