Hi,
Okay, now i saw it. In fact there is an another problem, after making the selection the page shouldn't re-loaded (because the page will be updated via AJAX) but on your website; but the page gets refreshed and the AJAX is loaded.
I need to investigate your case deeply to figure out what goes wrong. Please fill out this support-request-form below and email it to
This email address is being protected from spambots. You need JavaScript enabled to view it. and i will take a look at your website ASAP.
[Order ID]
<< Enter your Order ID >>
[forum URL -- don't touch]
https://www.flexiblewebdesign.com/forum-joomla-virtuemart-template-lightmart-support/3384-after-chang-payment-incorrectly-calculated-total
[The URL(s) to see the failure on your website -- don't touch]
www.fose.eu/sklep/
[Joomla Administrator Credentials]
<< Joomla Administrator URL & Username & Password >>
[FTP credentials] (Provide FTP credentials in this format below)
FTP server: ftp.yourdomain.com
FTP username: <<username>>
FTP password: <<password>>
regards.