You'd better apply for China visa in late July or early August if you go on holiday in September. Please pay attention to the consular districts of China consulate in Manchester: Greater Manchester, Merseyside, Lancashire, Tyne and Wear, North Yorkshire, South Yorkshire, West Yorkshire, Durham and Derbyshire

You can submit the application to the Chinese Visa Application Service Center in Manchester in person or by post. China consulate in Manchester doesn't accept application directly from ordinary passport holders.