Hello, regarding your flight change issue, here are some suggested ways to deal with it:
Contact the airline customer service: You can first contact the airline customer service where you purchased the flight, explain your change situation, and ask whether there is a refund of the price difference or how to handle it.
Understand the change policy: Different airlines have different change policies. You need to understand the airline’s change regulations and understand how the price difference is handled.
Refund and repurchase: If the airline cannot refund the price difference, you can choose to cancel the flight on June 1st and repurchase the flight on June 2nd. This way you pay twice for the fare but are guaranteed to travel as originally planned.
Refund and price difference compensation: If the airline agrees to refund, you can choose to refund and keep the price difference as compensation, and then purchase the flight on June 2 by yourself.
Wait patiently: Sometimes it takes some time for airlines to process changes and refunds, so please be patient.
It is recommended that you maintain good communication with the airline when dealing with problems so that the problem can be solved smoothly. Have a nice trip!