And, let us be clear of what a basic full apology entails:
1) A sincere statement of regret for what you did,
2) A statement of what you did and why it was wrong (so that it is clear you understand the problem), and
3) A statement of what you are going to do to fix the harm you caused.
Those who work in public relations need to know this. If folks over there are really serious about making things better, this is a bare minimum of what is required. Many people's pride does not allow them to make real apologies - but if you are not willing to set your pride aside, then you aren't all that serious about making things better.