Pegasus Airlines Flight Change Assistance Issue

Due to a cyber attack, they canceled the flight. We rescheduled it to a later date, but both of our flights ended up on the same date. We called again, asking for help, explaining that we can't fly to two different places on the same date. They are demanding twice the price of the ticket we originally purchased. Customer satisfaction is zero. They cancel flights when it suits them, but they don't accept any force majeure from the customer's side. It's a shame. We have created multiple records and exchanged numerous emails, but despite explaining our issue clearly and explicitly, they are not helping.