Ethiopian Airlines review by Tebebeyesus

We bought a ticket from Ethiopian airline two months out of our actual flight date(Actual Flight date is Jan 31st/2020). We bought 4 tickets for a family vacation and by mistake chose the wrong date. After buying the ticket we wanted to change the flight date to be 2 days later than the booked flight date, namely Feb 2nd/2020. To this request, Ethiopian Airlines is charging us what they call a cancellation fee of $300 per ticket which comes out to $1200 plus the price difference which they say is $130 per ticket. So, just to do a mere change of flight date, Ethiopian airlines is charging us a Total of $1720. I find this highly unethical and incredibly insensitive.