We apologize for any frustration this has caused. Simply removing the game yourself will not reset the data associated with your Steam account and your game account. Only Steam is able to remove a product (for example, Stronghold Kingdoms) from your Steam Library and reset the data associated with your Steam account and a product.
This is the only way to unlink your Firefly Studios game account with your Steam account and must be performed by Steam.
We hope that Steam Support will be able to resolve this issue with your Steam Library to your satisfaction.