After editing EmailAccount it disappears

[nurzhanme]

When I use Add method everything is ok. EmailAccount is created

But when I use Edit it disappears

Here is the code

var a = new PddApi("myPddToken").Domain("mydomain.com").Mail.Add("ex123", "Exam123456").GetAwaiter().GetResult();

var account = new EmailAccount
{
	Uid = a.Uid,
	BirthDate = new DateTime(1990, 1, 1),
	Enabled = true,
	Fname = "Ivan",
	Iname = "Ivanov",
	Login = "ex123",
	Password = "Exam@123",
	Sex = Sex.Male,
	Ready = true,
	Hintq = "quesion",
	Hinta = "answer"
};

var b = new PddApi("myPddToken").Domain("mydomain.com").Mail.Edit(account).GetAwaiter().GetResult();

While debugging I can see that b.Succes = True
Where am I doing wrong?