Baby Chee, sorry, I was a bit fast with that response.
Not storing cultures, lipases, rennet etc in the fridge or if freeze dried powders, in the freezer, is a reasonable mistake when first starting out, I've made way more/worse
.
So since you ordered, how long has it (they?) been sitting at room temperature and what is your room temperature?
They are shipped without refrigeration, so they don't have non-refrigerated "half life" of days, that said, more experienced people than me should be able to tell how degraded they are and how much extra you should add to compensate.