The following Asset Packs will be removed from Sale on 31 August 2022.
Simply said, they require more work keeping them up to date than they give back. There aren't many users and sales of these products and it's very niche.
Yes, all Products you purchase on the official Unreal Engine Marketplace are staying in your Vault and can be redownloaded at any time.
If Epic Games decides to remove that functionality in the future, then they are gone and there is nothing I can do.
No, they won't. That is also why they are being removed from Sale.
I can't guarantee or promise the update at the moment, but I am still trying to get them work in UE5 before August.
You are still able to ask for support and help with the product on Discord. However, this only covers the existing functionality within the Asset Pack you have. I will not send you any updated files to any of the Asset Packs outside of the Unreal Engine Marketplace.
Refunds are subject to the Unreal Engine Marketplace Guidelines and are given within 14 days of purchase: https://www.unrealengine.com/en-US/marketplace-guidelines#43
That I do not know yet. In the case that they will come back at a later point in time, they will receive an update on the existing Product if possible. In other words, if you own the Asset, you will receive the newer version at no additional cost. Please keep in mind that this is not guaranteed however.