Do you have to attend the CVASC for your visa or can you do postal service

I don't live in London and working full time Monday - Friday makes it extremely difficult to get the the CVASC. Do I need to attend a meeting or can I apply for a L by post? I'm coming to China in April flying into and out of Shanghai but travelling around for three weeks including heading to Sanya.

My partner got his visa earlier this year (2018) and has it for two years with multiple entry, is this still a possibility? His mum is an air stewardess so we are able to get to China a few times over the next couple of years if we wish and my entry permit allows.