You will get a receipt after you pay. Scan that receipt and upload it to CIC, together with an LOE saying "HK PCC will be mailed to xyz office directly by Hong Kong police department...they use regular air mail so please expect to receive the PCC report in x - y weeks..."
Can you please tell me how can someone get a payment receipt from HK Police while outside of HK? Are they going to know by default about my email id or use HK snail mail to my address?