Responding to the US committee, Apple said: "Repairs performed by untrained technicians might not follow proper safety and repair procedures and could result in improper function, product quality issues or safety events."Asked whether it took any action to block consumers from seeking an unauthorised repair, the company said: "Apple does not take any actions to block consumers from seeking out or using repair shops that offer a broader range of repairs than those offered by Apple's authorised technicians."Apple told the BBC it had nothing to add to its written answers to the committee