In response to this Cracker ad I called "Ayumi" on this mobile before Christmas and she asked me which services I was interested in. When I told her they included Greek (which was in her ad) she told me that that service wouldn't be available until mid-January. I resisted the severe temptation to ask her if that was when her haemorrhoid problem would be fixed.
That conversation confirmed to me the multiple girls behind this Ayumi, so just make sure if you speak to her that Grecian delight is on her menu.