Thermal suite passes based on cruise length

[bebe08]

Hi all, we typically like to get the thermal suite passes but the longest cruise we have been on previously is 10 days.  We have a 20 day Panama canal cruise booked for 2025, and the thermal suite passes being offered are for 21-25 days.  While our cruise is also available as a 21 day cruise (as well as 14, 24, 31 days etc) we have booked the 20 day.  Does anyone know if there is a thermal site pass for 20 days or do we have to get the 21-25 day pass?  

 

Thanks in advance for any insight.