I booked a holiday today and paid immediately,

I booked a holiday today and paid immediately,
I get later in the day that still has to pay 135 euros extra if I want to take this already paid vacation.
I also paid the extras afterwards I called them for confirmation, they said first make photo of payment plus agree to email us new amount. She also did not want to help me further by telephone. So what you see as the end price can't be right either