airberlin topbonus - Can you reserve the ticket but pay it later?

Im trying to book it for 48hs or so and then pay it but website doesn't seem to accept this. Should i call?

update. I have called and you can put on hold for 24hs but the price over the phone was more expensive that online.

Use a Travel Agent!!!

Travel Agent? I do everything myself but you may be right in some cases.

I use both. A good TA can do reservations without booking. Sometimes they have access to other fares. My TA is worth every cent.