PR efforts for the card - which is a joint venture between the charity and the HFC bank - are now being overseen by consumer PR shop Starfish Communications.
The agency is promoting the financial boon the card offers - £15 for each card taken out and 25p for every £100 spent - by highlighting the number of plastic macs for lambs the £15 can buy (75, by the way).
'We couldn't ignore the UK's love of animals,' says HFC corporate affairs director Martin Rutland.