credit cards on its website after it had been expected to introduce the changes from wednesday. an amazon spokesperson said they were working closely with visa on a potential solution . the company said in november that it would ban visa s card because of the high transaction fees charged. the chairman of the global banking group credit suisse has resigned amid reports that he twice broke covid quarantine rules. antonio horta osorio who used to run lloyds banking group is understood to have attended last year s wimbledon tennis finals when he should have been in isolation. our business editor simonjack is here. simon, what is he said to have done? there is a bit of an irony here that this was someone who was brought to credit suisse to bringing a bit of discipline after some multi billion pound scandals at this bank. but he was found by an internal investigation to have broken covid restriction rules. he flew from switzerland to the uk and on that