Don’t worry about your money. If you complain us within 7 days from purchase date, we will refund your unused sms price. For example, You purchase 5 thousand promotional sms at Rs. 750 + 135 (18% GST on Rs.750) You used two thousand sms then complain us for refund, we will refund your money for three thousand sms( Rs. 450 excluding GST), the GST amount can not be refunded.