Was happy with the free 25 credit initially given to me to test out, when trying to purchase further credits an error prevented me from buying further credits , however the support team was very good and did explain the reason why and I was satisfied with the explanation. (developers were making some updates to payment gateway) I Will continue to use Voodoosms for future sms campaigns . The combination of getting free credits when you buy more credits makes the overall cost more competitive than other sms gateways. Overall would definitely recommend