Domain delete feature

[Bruno Carlos]

At http://www.dotregistrar.com/
they say:

NEW: FREE Delete Feature! Yes, now you can delete domains within 3 days of
registration and get INSTANT CREDIT back! So stop wasting money with
misspells or customer errors at other registrars, move to DotRegistrar
today!

Is this a new feature common to all ICANN registrars, or is this just a
special promotion by this registrar?

Bruno Carlos