I found the same. Am I doing something wrong?
It's only allowing you to enter 5 codes so doesn't appear to be working this morning
Be careful with this. Although it advertises £15 holidays (they do actually do £10 ones too), what you (actually) pay can be over double. For instance, a booking made through this cost £43. The place then charges a peak time tariff of £6 per person per booking (minimum of 4 people = £24). On top of that is the service charge (mine cost £8.25 per night, 4 nights = £33). Then we wanted to take the dog. There's another £25. In total, this '£10 per person' holiday has actually cost £31.75 per person. It's still not bad, but just beware of the additional charges from the park.
Codes are: 1: CHUMS 2: DAFFODILS 3: SHINE 4: RIPPLE 5: DUNES 6: DANCE