There is nothing wrong with selling a ticket on; it is a valuable commodity I should be free to sell. The Act only applies to "designated football matches" (not middle class sports) and was passed after a press-panic campaign in the 1990's as a reaction to crowds turning up at football matches in the hope of buying a ticket; something best dealt with through a local bye-law. Its effect has been to give the wealthy football clubs a commercial monopoly.
A few months later a theatrical ticket agency, which resold tickets for operas and West End plays, went bust and MPs passed a motion mourning its demise; no-one saw the irony.