Originally Posted by
clubeurope
But does anyone know how many times one is allowed to change the date of their flight?
Last time I asked the PSL (early december), there were no hard limits. One data point: I rescheduled a given booking 4 times last year before giving up and asking for a refund.
Originally Posted by
clubeurope
Is it otherwise possible to have the return flights set as “open”?
As far as I know, no. You have to settle for a date, and don't forget to push it further from time to time.