Just booked to go to Cardiff on Sunday. It will take 5 and a half hours and cost £76 single. Good grief.
In that case, the £76 is only a rip-off because you want to be at the Wales Millennium Centre in good time on a Sunday to watch a performance that commences at 4pm so you have chosen to travel via Crewe tomorrow morning.
As a result, your train journey will take 5 hours and 14 minutes.
Earlier in the week, an advance single ticket to Cardiff leaving tomorrow morning cost £36 and it would have only taken you 4 hours and 17 minutes.
You could have caught that train and still not missed the performance start by catching a taxi straight down to Cardiff Bay.
With a senior railcard that ticket would have cost only £24.
Whilst I agree train fares can be expensive I feel you have been unfair to Arriva Trains Wales on this occasion.
BTW, you can always use a debit card to purchase tickets online if you do not have a credit card.