sorry as im new to this forum i don't know what that is all about?
thanks all for replys
The first line you quoted is about Carnet tickets, but the word Carnet wasn't in your quote.
Carnet generally means a book of, say, 10 tickets bought in one transaction in advance that are then validated. An equivalent would be a "mini season ticket" at some football clubs, where you get 10 tickets for 10 games of your choice.
Details of FCC's carnet scheme are here:
http://www.firstcapitalconnect.co.uk/tickets-and-fares/peak-tickets/carnet/
The second line you quoted refers to a normal Season ticket. If you work Mondays-Fridays and do not require the ticket at weekends, then it makes sense to look at your calendar and work out the best periods to have a season ticket issued for.
e.g. for someone working Mondays-Fridays and not weekends/bank holidays who has annual leave on 26-28 April starting work tomorrow, it would be wise to buy a season ticket starting tomorrow (17/01/2011) and usually you would want it to finish 5 weeks later on 18/02/2011, you would then get the next season issued from 21/02/2011, unfortunately February isn't a good month to get a season, it would expire on 20/03/2011, and then the third season would be from 21/03/2011 to 21/04/2011, then the next season would not be required to start until 03/05/2011, which you would want to finish on 03/06/2011 that requires a 1 month 2 day, 1 month and 1 month 1 day season, and another 1 month 1 day, to last you until 3rd June. and so on...
However as February isn't a good month to renew a season it
may be cheaper to do it slightly differently, I'm not sure about that.
For most months, you would want to extend a 1 month ticket to last 5 weeks, by adding the appropriate number of days. This varies when you have annual leave, bank holidays, etc.