eDreams complaint: Site error – False information

The site was showing the correct date on the booking time and at the end it was giving a different date.

When i realized the error asked them to correct it, since it was coming from their side.
The answer was no and not even refund can be made

To do not lose time and money i asked them to cancel my booking since not even 12 hours have passed.
they said it is okay, and mentioned i can have 948.54 EUR
Today i received an email ing the refund of 828.54 EUR
Agent has asked me to the amount if it is fine for me or not, i have mentioned also, start with it and he had given a site to file my claim of the error and ask for the rest of the money

Stated they will look into it and coming right away.

Meantime i have rated the site on truspilot and after that received an email from them how much they sorry this….
I have asked them several time to clarify the issue , what has happened and explain the refund….
no proper reply from their site till now

Today tried to reach them on chat where first they were declining me and after when i said i am filing a complaint due to the lack of customer service, error and everything mentioned above,
They dont reject me, just dont accept my contact