The agencies were appointed to the roster following a pitch against WDMP, Meteorite, Kitcatt Nohr Alexander Shaw and Table 19.
The mobile phone retailer called a pitch for the account in August, after a major restructure of its marketing department. It may appoint other roster agencies in the future.
The direct marketing account was previously split between WDMP and Kitcatt Nohr.
Above-the-line marketing is handled by CHI & Partners.
News of Lida's win comes just a week after it was awarded the £15 million Boots CRM account. Other wins for the agency this year include Channel 5, East Midlands Trains and Butlins.
