****** for 24 redbull sent 12 by Amazon bought first time too

I was ****** opened an account for the first time paid for 24 redbull and got 12 every time I was asked to submit proof I did they said images are altered got to the point where I now broke the seal to show how many bottles are there with the note being held in my hand and still it's not valid I don't know which PDF app does not alter the image but according to them it's altered because it's enhanced how does a pdf document not change when it's being converted from one image to another?