The closing date for entries is 31st January 2010.
No purchase is necessary.
The draw is not open to employees of Teachers Building Society or its subsidiaries and their families.
Entrants must be UK residents, aged 18 or over and only 1 entry per person is permitted.
The winner of the £100 prize will be the first entry drawn at random from all the entries received by the closing date. The draw will take place on Monday 1st February 2010. The winner will be notified within 5 days of the draw and the prize money will be deposited in an easy access Call Save account.
The winner will be required to complete an application form to open a Call Save account in order to claim the prize and there is no cash alternative.
The judge's decision is final and no correspondence will be entered into.
Teachers Building Society reserves the right to suspend, amend or cancel the prize draw without prior notice if it deems it necessary due to circumstances beyond its control.