I went to Shenzhen, China in September 2017 to get my PCC, now I stayed in Shenzhen for good 2.5 years (August 2012 to February 2015) and afcourse travelled a lot in China and out of it in between sometimes at a stretch for good 1 month. I had temporary registration issued in October 2012 thats it. But luckily I started a business there and had other docs like official represetative certificate and all. So when I reached the PCC issuing office in Zhuzulin in Shenzhen, they asked for for my temporary residence registration, since I had only 1 they were confused, then I showed my passport which had my first entry and last exit stamp,and other official docs. The lady at counter went to her senior and after 2 mins returned back and told me to collect my PCC for full duration I had asked for on 3rd day from that day. NOTE: PCC issued by them will be in chinese so you will have to get it notarised and translated which might take as much as a week in local notary office.