Yes, that;s correct.
My family member had LTF Millenia with 5.1 L limit.
Got RG FYF upgrade...ignored for 2-3 times in a span of 8-9 months.... again got Paid RG upgrade, this time mailed to GR for making it LTF upgrade, they denied, so did not take the offer....after few weeks, got the offer for LTF RG.
The thing is usually they will not give what you want/ask......but will given when you dont want/are not asking for it.
There was no hurry in upgrading bcz LTF Millenia was far better than FYF RG (basis spends pattern)