The folk who really need such promotions are [huge generalisation] going to be low paid workers who often get a weekly wage. Given the computer systems it should be possible to offer the same deal to those who cannot lash out £100 in advance.
LAst time I remember the offer I was off work with an injury and on benefit. I went to the 2 'qualifying' games but had to miss the third 'free' game as I couldn't afford to cough up cash in advance.
Sure life is a bitch - but RFC could do more to help those who are not having much luck....