Confused-storage

Lisa
The chart that came with my pump said that refridgerated  milk has to be frozen within 24  hours of pumping. But i saw a lady on here say something about 5 days? Mr google hasnt given me an answer. If it was longer that would be great as only pump 2oz a day and would like to freeze in 6oz amounts rather than 2 as thats what my l.o takes. 
Opinions/advice?