If a person doesn't want to get involved with some company for perceived issues... I do not see the point in waiting for "an apology" just so they can then feel good about buying stuff from them again. That just feels like someone trying to pat themselves on the back for "standing up" for something... when in truth they are ready and able to jump at the chance to get the thing they want as soon as they feel things have been "righted" in their mind.
To me... if you're going to bother doing that, have the guts to go all-in-- cut them off entirely, no ifs, ands, or buts. Don't wait for the apology, just move on.