'Millions' of unsolicited credit card cheques issued--EXPLODE--http://digg.com/business_finance/Millions_of_unsolicited_credit_card_cheques_issued--EXPLODE--More than 300 million unsolicited credit card cheques were issued last year, a new study has revealed. Research conducted by comparison website uSwitch.com has found that 326 million such cheques were sent out last year but only six per cent were requested.