Ahmadiyya boycotting continues. Ahmadiyya INC has been ordering Ahmadi’s to boycott ex-Ahmadi’s since at least 1889 and Meer Abbas Ali.
Summary of this letter
This is from Qadian, most of the times it is on official letterhead yes but the main communication language for the Markaz both in London and Rabwah is still Urdu. And this is from the Sadar Amoomi in Qadian and mostly these local letters are written on regular paper with stamp instead of the letterhead.
The letter tells Ahmadis to boycott ex-Ahmadi’s, especially on Facebook and other sites.