Scott King, 24, who was taken into care at six-months old and moved between foster homes 26 times, said there was "very little stability and consistency in care".
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The company said it had "considered pricing changes very carefully" and "sought to minimise the impact on customers".
Chief Executive Ross McEwan told ITV News he was "pleased" with the bank's performance and would therefore accept his role-based allowance.
Business Secretary Greg Clark said talks with Peugeot's boss over a potential Vauxhall takeover were both "constructive and reassuring".