I booked my refill on 4-2-17. Nd after 6 days I got msg that my refill delivered but I didn't get any refill..so plz help me..

I booked a cylinder for 5-may-2019 but till date 19-may-2019 cylinder not delivered. Am very disappointed for your services this is every month practice so now plz take action and give me a better response for your side. Otherwise I take a action.