Seeking remedy on undue practices on refunds, the Travel Agents Association of India (TAAI) has reached out to airlines seeking clarifications on excess GST charged on air ticket cancellations and changes. In a communication addressed to all the airlines and various ministries, the association informed that travel agents have been overcharged K3, the cancellation change fees as 18 per cent in place of 5 per cent (in the case of the economy) and 12 % (business) class. While seeking refund of excess K3 for travel agents, TAAI said that a huge amount is being wrongly collected in the name of K3.