Canadian applying for tourist visa in HK

I'm a Canadian citizen and am thinking of applying for a Chinese tourist L type in Hong Kong. I recently moved to the UK and the costs here for getting PRC entry permits are horrendously high.

I've done lots of visa runs in HK in the past (when I was living in PRC) but heard that in the last couple years non-residents of Hong Kong cannot get a PRC entry permit in Hong Kong. Is this true? Will I be turned down if I show up at that office and apply for a single entry tourist L type?