You may change your designated pharmacy regulatoryauthority (PRA) if you have not applied to a PRA through Pharmacists’ Gateway Canada. The process is easy:
a. Log into your profile.
b. Click “PRA” on the blue navigation bar.
c. Select the “Update” button.
d. Designate your new PRA.
Once you have applied to a PRA, you cannot change it. You must add another PRA. The process to add a PRA is as follows:
a. Log into your profile.
b. Click “PRA” on the blue navigation bar.
c. Select the “Add New” button.
d. Select the PRA from the drop-down list.
e. Accept the terms and conditions.
f. Pay the non-refundable fee of $335 (plus tax, if applicable
Link below
http://www.pharmacistsgatewaycanada.ca/faq.shtml#answer12
Check question number 12