There are restrictions that apply to the exchange of international reply coupons from other postal administrations in Canada.

• When exchanging international reply coupons for postage, we reserve the right to ask you to immediately affix the postage directly on the item or items to be mailed.
• You must:
  • Pay the difference if the item weighs more than a standard letter or additional services are needed (for example, Registered Mail™)
  • Pay the supplement if you ask for a commemorative stamp or stamps on which a supplement is payable in exchange for an international reply coupon
  • Give us an opportunity to determine if the coupon is valid. We won’t give credit for forged or counterfeit coupons.
• You may not:
  • Redeem international reply coupons for cash
  • Use international reply coupons for remittance purposes
  • Present more than 100 international reply coupons at a post office in one day (limit may vary per post office)