I have an problem with an magento 1.9.2 shop. We have added a product option where the customer has to pay a fee of 3,50€ once he is adding this option and the base price should be updated accordingly. However, if the customer selects this option, the base price is jumping to 0,00€ instead of adding the 3,50€. If I go to the shopping cart, the price is correctly displayed (base price + 3,50€) so there is only seems to be an issue on the product details page.
Do you have any idea how I can fix this issue on the product details page?
Many thanks in advanced
is there any extension installed for custom options or it is default Magento ?