Is the current offer of a free dining plan likely to be extended? Want to book but not sure we can afford to pay up front this month.
Going on history, it's unlikely. They rarely extend offers; usually it changes to 30% off or buy 2 nights get 1 free, or the like.
If you book over the phone you can secure your trip with a deposit and pay the balance something like 8/10 weeks before departure.
From my experience, the offer does extend, you just get a smaller discount on your stay. It usually starts with a 30% discount plus HB, then 20% plus HB, then 10% plus HB and finally they just give you HB.
On the dutch site the 30% + free hb can be booked untill april 27th.