PayPal not picking up options??

-- url of the page with the problem -- : www.wodrocket.com/index.php?option=com_h...ct&task=show&cid=722
-- HikaShop version -- : 2.2.1

On the link above, users are trying to check out using PayPal, and when they select "yes +10.00" to their orders, PayPal is not processing the additional $10.00 (Authorize.net is working fine).

Not sure why but it is causing a email error which reads:

Hello,
A Paypal notification was refused because the amount received (35.00USD) is different from the order amount (45USD)

Check the documentation concerning this issue at www.hikashop.com/index.php?option=com_up...-paypal-error#amount
This notification was for the order H4Q0Q39 on the website www.wodrocket.com/
You can access the order details directly by clicking on the link below after logging in your back end:
www.wodrocket.com/administrator/index.ph...k=edit&order_id=4039

Hi,
Firstly can you download the last Hikashop version, install it and try it again ? Also, can you set the Send details of the order option of your PayPal configuration page to NO and test it again ?
Thanks .

Thanks.

Send details of the order option of your PayPal configuration page to NO