I'm not quite sure how to say the following in German, despite googling and looking at dictionaries for a while.
Call me (from the 20th onwards)
I basically want to tell the recipient of the email that my phone will only work from the 20th onwards. The best I can come up with is
Rufen Sie mich an (vom 20. an.) or (vom 20. ab)
but it doesn't sound correct to me.
Mit freundlichen Grüßen, Durand