hi
I have applied twice for Germany PCC  from Canada and my experience.
1)  Took attestation from notary  near me and paid the fee, once  using  Remitbee  app  ( transaction fee $ 3 CAD ) and  second  time   using TD bank global  transfer ( transaction fee is $9 CAD) one difference  among the both  we can give infavour name / message in Remitbee  app. while  TD app we can give the message where we can give the details. ( when I applied  using remitbee i have attached the   transaction  receipt ).
2) I have used  DHL   courier  service to ship the application, it took three days for  shipping the application to Bonn. ( -CA -> US -> Customs -> Belgium -> Germany- Bonn)
One mistake I did in the fist application,  given my friend German address to avoid shipment delays/ discrepancies, which caused an issue that on the certificate friend address is printed. So better avoid the short cuts. First Applicaiton -> Sent on Feb 22 from Toronto CA,  it reached on Feb 26th,   Certificate was issues on march 10 and  the certificate was shipped to friend address on  March 18.
As  friend's German address is printed applied  second application and shipped  on march 22th and  document reached  at Bonn  on march 24th.  Second application was issues on April 13 and  shipped to Canada address on April 13th.  It took three weeks to  reach to Canada address.
Received the Certificate with Canada address on the certificate on  May 4th.
Germany help desk people were good,  they responded to  email  timely with patience.