we apologize for the issues on the site, please contact us directly to resolve any issues you may be having.
Any discount codes are usually applied on Amazon only, the flyer will usually have a note that indicates where it can be used. Please send us a message and the code you received, and we can confirm and provide a working code for you.
Currently we are limiting to 3 bottles per customer on our website as these are 180 count bottles each, for shipping purposes. You can order up to 10 bottles on Amazon as they have very fast and efficient shipping process.
Hope this helps and please contact us if you have questions.