How to drop the useless items from inventory?

[georgenkf]

In the past, the chesterfield vineyard, paraglider perch etc need 10 special items (grape bunch, parachute) to be repair. However, now they are only need 5 items. I have some excess items in my inventory. I cannot remove them when my inventory is full. How can I remove them? Thank you for your help!

[Rynetory2]

Oh they changed that? That's wonderful for others and you. You can contact Support: support form and have an agent remove them for you.

By the way, if you dont mind, can you let me know what other requirements have changed besides the vineyard and paraglider? For me to update the Guides. Thank you in advance. Cheers.