I just booked return train tickets using Trainline and, when checking to see the difference in price, I ended up accidentally buying Railcard holder tickets instead of normal ones (I don't own a railcard)!
Does anyone know what happens if I get on the train without a railcard - am I charged the excess or will I be charged the full ticket price? I'm a bit worried I will be charged loads! I don't want to pay £30 for a railcard that will only be used this one time, when I could just be paying a tenner difference.