force to ask for shipment options all the time

[gazda]

Hello everyone,

iam making a site and doing some tests, currently using austpostpac1 plugin works well. but when you choose a shipping method it saves it and when i delete a product and re add for testing it keeps using default saved, how can i force to always ask me to choose shipping.

using virtuemart 3.0.18 and joomla 3.6

iam not a web developer little bit noob but enough to get the whole setup running until here, i cant understand any coding
hope someone can help