Avoid their online bookstore at all costs

I bought an online textbook using their payment system 2 days ago. I still don't have the access code, and now their Van Schaik Support <***> person is asking me for proof of payment after I sent them confirmation of payment and the reference number from their system. The experience has been unprofessional, and I regret making this purchase. One would imagine if you buy an online textbook that you would have immediate access - not so it would appear.