Just accept that she wasn't prepared to give a definitive answer from going off photographs as that is something she could be held to. If she wasn't sure then she wasn't sure, you have the answer given. You can't force someone to say something they aren't sure about, something you are expecting them to do.
Do you expect Premium to make an appointment and meet the SP to see if it's the same person.
BTW your first sentence is about two separate things, firstly Premium aren't aware that Cali has an independent profile and secondly they don't think the photos are of her.
Edit
Have you put the number in WhatsApp to check the picture yourself?
Not being aware it was her was a pointless thing to say, they don't have to be aware of anything she does that is none of their concern, she could easily have said she don't believe those pictures were of Cali, again the pictures are very clear for all to see on vivastreet, premium site there are no face pictures. I'd hope premium at least know what their girls look like?
My sentence is in reference of what they say, which again was pointless and is explained above. Not being aware is not a useful answer in any way as, again, they don't have to be aware of any profiles she may have elsewhere. However saying these pictures are not Cali, doesn't believe they are of Cali, would be useful.
Why would I bother putting her number into whatapp? Can't people use fake pictures on whatsapp? Also I have no interest in seeing this lady, Cali or not.