Using 2 CruiseNext certificates

[garebarepups]

I noticed you can use 2 CruiseNext Certificates for a Balcony or higher, 6 months in advance until July 31st.  I was doing a mock booking on MyNcl account and it is only letting me pick one of my CruiseNext Certificates. Anyone have experience with this? 

[kfnesq]

You may be only able to click one at a time--book with one and then go back in and use the second one?  I think that has happened to me in the past.  Alternatively you could call and they will apply two at the same time.

[ddlb]

I have used 2 cruise next certificates several times without restrictions on a balcony.  I have even booked an inside with one and upgraded to a balcony and was allowed to used the 2nd one.  Back in June you could use 2 for any type of cabin!  I always did this through my TA though - not online.

[garebarepups]

Ok thanks I will call NCL direct when I get home and book