I will be a tourist in London at the end of August and have made plans to attend a theatrical performance at the Royal Theatre Bath on a Saturday afternoon. This will involve a one day round trip (ie return) by train between the two cities. I would like to take advantage of an advanced ticket purchase on Great Western Rail but I don't know how to do this while I am still in the United States. I have the on-line order form to complete but don't know what happens after I have submitted the order form to the rail company. Do I get a paper ticket which I can print and use on the day of the trip? Or do I get a digital version of the ticket which will be impossible for me to use because of differences in cell phone technology (ie, I use a CDMA phone and won't have a GMS unit until I land in London)? Or do I bring the ticket purchase receipt to a train ticket desk at Paddington Station prior to the trip and have it converted to an actual ticket?
Will I lose any price advantage under these circumstances?