In case you are getting the following ERROR MESSAGE when trying to buy a product of ours:

https://secure.jazzheaven.com/checkout/optionsLoad.do

'Your shopping session appears to have timed out due to inactivity or you have completed an order and then attempted to use the back button.If you clicked the finalize order button already.

Please check your email for a receipt within the next 5 minutes before returning to our site and attempting to place a new order. You may accidently place a duplicate order if you do not check first.
If you would like to modify your order after placing it, please contact customer service.
Please return to our website and create a new cart or contact customerservice to change a placed order.
'

SOLUTION: simply CLEAR YOUR WEB BROWSER'S CACHE/COOKIES and it will work!

Here is how:
FIREFOX: go to History/Clear Recent History
CHROME: go to Chrome/Clear Browsing Data
SAFARI: go to Safari/Reset History/Clear History
=> Info for all browsers: http://wikihow.com/Clear-Your-Browser's-Cache