Move Item without copying (using Sitecore SDK)

Question

I am using Xamarin sitecore sdk which has documentation here, for managing sitecore integrations at my organization.

I am able to connect, get items, create items, etc.. . However, I am not able to move an item. I've tried multiple methods such as updating the parentID field or setting the ItemPath.

When attempting to update the item all I get is a 204 response and an updated = true response. However, 204 essentially means there was nothing to update.

public bool UpdateItem(Guid item, Dictionary<string, string> updatedFields)  //Updated Fields contains one keyvaluepair = "ParentID", "<Guid>" 
{
    using (Login())
    {
        var request = ItemSSCRequestBuilder.UpdateItemRequestWithId(item.ToString())
             .AddFieldsRawValuesByNameToSet(updatedFields)
             .Database("master")
             .IncludeStandardTemplateFields(true)
             .Build();

        var updateItemTask = _session.UpdateItemAsync(request);
        ScUpdateItemResponse response = updateItemTask.Result;

        return response.Updated;  //Returns 204
    }
}

Note: The Logs show:

752 10:17:41 INFO [Sitecore Services]: Ignoring update of parentid on Item {-Guid-}