lonelytraveller wrote:
When oyster card season tickets expire, it still lets you through the
gates for one journey the next day. But it charges you pre-pay, and
even when you renew the season ticket, you still have to pay the
pre-pay fee. So that day cost you twice the amount it normally would.

Is there any way of avoiding this, or getting your money back?

I don't use one but recharging the card before it runs out sounds like a
good ploy.

http://www.oystercard.com