Bought wrong item

If i buy the wrong item from the magnetite shards vendor is there any way to exchange it for the right item ? I know it's my fault, but i would like to know if there is something i can do

You can try asking support, but i doubt they'll refund it.

Support is usually very understanding when it comes to mix ups like this, as long as you don't make a habit of making these mistakes. They were certainly very kind and helped me out when I made similar mistakes. Usually, they'll have you destroy the item you accidentally bought, and then they'll send you either the item you intended to buy or the currency used. But don't just destroy it without talking to them first. Submit a support ticket, but be prepared for a bit of a wait because support is still backed up now.