I was just reading more about the guy who was taking DSE to whomever over wanting to repair his phone vs refund. What about those who bring their mobile phone in saying coverge is bad and are unhappy when the repair centre sends it back, even twice, saying no fault found. Boss said it is fixed because they cleaned the internal conacts etc (as a precaution, as it's written). What are the customer's rights if he/she still reckons it's not working properly, when repair centre says it is?