You shouldn't be using the D3 with calcium every day - you should be using plain calcium without D3 according to the care sheets for the species- which I think is daily for a veilded -
I'm thinking you might have intended to say that you couldn't find calcium without D3 - which you can find on-line (LLL reptiles has it for one)
It makes a difference - and I'm pretty sure that the reply would have been different from sandrachameleon if that is the case.