Just been looking at bus passes as my eldest goes to secondary school in September. You can pay direct debit of £19.00 for 10 months or if you want a Metro Add-on is £22.75. I think its cheaper than buying the pass outright and you know its being paid.
Hope this helps someone. I only found it by following Wookiemummy link for the free travel pass.http://www.travelwm.co.uk/tickets-and-prices/travelcards/YoungPerson5-15RegionalTermPlus/24/
You can download a form.