Goibibo - Cancelled ticket without intimation

My complaint is against Goibibo and I have got all the proof for the same. I'm raising complain about poor service and fraudulent done to me by Goibibo. * Years back **/**/**** I book International flight for Dubai from Mumbai via Goibibo and I called them asking for date change and that time they cancelled my tickets without giving any intimation to me for the cancellation and without my confirmation for the same, that period of time I use to call them for refund and ask to correct their mistake. But they did not refund any of my money but they promised me that I can change the date any time as per my conveyance, so after certain month I called them and ask for date change * of girl CSA she said there is nothing mentioned like that, but I had proof and I send to them, but later did not hear from them. Then again on **nd Nov ****, I contacted Goibibo for the date change and they assure me for redressal on the matter and asked me to provide proof for the same, as soon as provide them final proof confirming of a free date change or refund they promised to reply but they never reverted me till now. So I want to take this case forward and want my full refund with compensation for their cheating services, looting and wasting of time. I have got all the recordings, written emails. I would request you to kindly take this matter on an urgent basis, Goibibo should pay penalty for the same.