Kuwait Airways and Easemytrip - Flight rescheduled with the first leg after the second leg of the journey

I booked my flight ticket from Bangalore to London on ** Jan **** for the travel dates (Bangalore to London **th Apr **** and Edinburgh to Bangalore on **-Apr-****). The tickets are booked through HDFC Smart Buy and the agent was Easemytrip.

The onward journey was in Kuwait Airways where in the first leg (Bangalore to Kuwait on **th Apr **** departure **:** AM and arrival **:** AM) and the second leg (Kuwait to London on **th Apr **** departure: **:** AM and arrival **:** PM).

I booked these flights in advance as I am aware that the flight tickets closer to the travel date will be expensive and will be out of my budget. I also planned and booked all the other travel, stays etc. in advance as per my flight ticket.

After ** days, I received a flight reschedule email from Kuwait Airways which was the first leg (Bangalore to Kuwait is rescheduled to **nd Apr **** departure **:** AM and arrival **:** AM). This means the first leg of the single PNR is shifted to * days after the second leg of the trip (Kuwait to London on **th Apr **** departure: **:** AM and arrival **:** PM).

I was surprised to see such a schedule as no one can travel as per the rescheduled ticket where in the same PNR first leg of the travel is after * days of the second leg of the travel. I immediately raised a concern to Easemytrip as well as Kuwait Airways.

Easemytrip gave me other options which is * days before or after my planned date of **th Apr and it is not acceptable for me as I have already booked the entire trip (other travels, hotels etc.).

I could learn that Kuwait Airways flight on **th Apr **** was cancelled and they shifted all the passengers from **th Apr **** which caused overbooking in **th Apr **** flight and my ticket which was booked early and it’s in lower price the shifted to **nd Apr ****. They insisted me either travel on **nd Apr or other options other than **th Apr or cancel my ticket. If I proceed with cancellation there will not be any deduction as this is caused due to the reschedule from airline side.

I have raised a cancellation request with Easemytrip for my onward journey in Kuwait Airways and also informed that there should not be any cancellation charge and full refund should be processed and also demanded a compensation from Kuwait Airways as I had to book my onward journey in another airline which is almost ** days later and it caused me *****. Easemy Trip processed my refund but they deducted (airline penalty, and convenience fee) and told me that it would be refunded but only very less amount.
I want to raise a complaint against both Easemytrip as well as Kuwait Airways on following grounds,

Kuwait Airways rescheduled the ticket ** days after booking the ticket and also, they rescheduled in such a way non one can utilize and travel in the ticket. (First leg of the ticket is * days after the second leg in the same PNR).
Kuwait Airways didn’t process the full refund even though the cancellation was due to the illogical rescheduling from Kuwait Airways. Also did not provide any other alternative option for **th Apr ****.
Kuwait Airways did not provide any justification for such a reschedule which is irresponsible and illogical.
The reschedule and cancellation caused me huge financial burden as I had to book a new ticket for my onward journey with another airline and costed me Rs. *****.
Easemy Trip deducted convenience fee which they should not as the ticket became not usable after such a reschedule.
Easemytrip provided me different information at different times. I am still not sure what is the actual ticket price and what are the actual deductions.
Easemytrip has not provided me the documents:
• Original invoice with ticket price for the onward journey (with information such as airline charge, tax amount and convenience fee etc.).
• A credit note on my name with details (original booking amount, deduction breakups and final refund amount).
• Justification why there are deductions as the entire cancellation is initiated due to the reschedule from airline.