When you phone up on the 19th, say you want 4 and all have attended 3 away games. They tend to check the first accounts history but not the rest so you could get all 4 on the 19th. I've just succesfully got an extra ticket by doing it
And im 18, i asked for an u19 ticket to find out the is no such thing, apparently a typo on the OS, and its actually u18
You must have got lucky there Spl. I've been buying away tickets for several years, including six this morning, over the phone, and have always had to give ref number, surname and first line of the address. I know they've checked the history, because on occasions, they've queried the number of games booked previously.