Hi Nemi, if you are still not able to find the vitamins in your inventory, please create an account with your SL name and file a ticket here:
http://kittycats.biz/support. Please include the transaction history for your purchase and we will be in touch with you within 24 hours of when you file the ticket. Feel free to also contact any of the CSR in-world for future questions, comments or concerns. Thank you.