The agency saw off competition from its fellow roster agencies, Partners Andrews Aldridge and Interfocus, to land the account, which originally went up for review in August last year.
The Trustcard was set up by TSB prior to its merger with Lloyds Bank in 1995. Lloyds TSB's decision to reinvest in the brand was made shortly after it appointed the former Goldfish and American Express marketer, Grant Millar, as its customer marketing director.
Although the account's budget has yet to be announced, it is thought to be sizeable. Lloyds TSB spent £3 million on above-the-line advertising for its cards last year, but its total marketing spend on card services is thought to be around £20 million.
Neither WWAV nor Lloyds TSB was available for comment as Campaign went to press.