Almost one in two (47%) UK consumers are interested in mobile payments, research from Oxygen8 has found, with 11% saying they would like to use their mobile phone only, replacing the use of credit and debit cards altogether. 25% of respondents have purchased an item on eBay using their mobile device, 14% have paid bills, 10% have purchased clothes via an app and 9% have bought groceries via an app, the survey found.