Yeah, as others have said, all bars are allowed on SS from day 15.
The cranberry and peanut bars have similar carbs to the shakes. The other have more. Some CDCs allow the cranberry and peanut ealier because of this, but personally I stick with the day 15 rule, because other things could be going on, and it's good to get away from the chewing. Head detox kind of thing. Also gives you something to look forward to.
If trying the other bars, you find a slower weight loss, then there might be a need to knock them on the head. Personally, it was worth it to me as I loved the malt one and it helped me stick to the diet. Peanut and cran weren't around when I did the diet :cry:
Until then, there is no reason why you can't have them on SS from day 15. Just one a day. Extra water throughout the day. Sometimes there is some confusion amongst CDCs and it might be worth asking her to contact cambridge for clarification, or to ask on the CDC forum on their website and I'll tackle her
That's if you can do it tactfully because it's a bit of a toughy
She is obliged to provide all the bars though if it's on the plan you are allowed.