Virgin Mobile T&Cs for $50 phone credit when buying a Virgin Car Insurance policy:

Virgin Mobile Offer This offer is valid from 01 July 2011 to 30 June 2012, unless extended. This $50 credit offer is available to Virgin Mobile members (excluding Pre paid Broad band Customers), is only available once per mobile service and is not available in conjunction with any other Virgin Mobile offer. Offer is only valid if you purchase Virgin Car Insurance through virginmoney.com.au/mobile or by calling 1800 555 902.
Bonus Credit The $50 bonus phone credit will be credited to your account up to 90 days after the policy has become active and the 21 day cancellation period has expired. Pre-Paid customers, bonus credit expires when your current voucher expires. This offer is not redeemable for cash and is not transferrable. The Virgin Car Insurance policy holder must be the same as the Virgin Mobile member. The Virgin Car Insurance policy must not be cancelled within 21 days of purchase in order to receive the points. Renewal date submissions via virginmoney.com.au are not eligible to receive the $50 bonus credit unless they sign up as a customer to Virgin Money before 30 June 2012.
Promoter: Virgin Money (Australia) Pty Limited (Virgin Money) Authorised Representative No. 280884 of Virgin Money Financial Services Pty Ltd AFSL 286869. A&G Insurance Services P/L arranges the insurance on behalf of Auto & General Insurance Company Ltd (A&G). As we don’t know your financial needs we can’t advise if this insurance will suit you. Consider your needs and the Product Disclosure Statement (PDS) before making a decision to buy this product. A&G pays Virgin Money a commission which is a percentage of your premium. For further details see the Financial Services Guide (FSG). View a copy of the PDS A, PDS B and Financial Services Guide. Approved applicants only. Insurance not available in the Northern Territory.