Deposit your rial in Iran to the EzExchange account to deposit it in Canadian dollars to your account. After registering the request and depositing rial funds into the account of the company in Iran, your request is waiting for users who are selling dollars and as soon as possible and it will be your turn to buy dollars and dollars equivalent to account declared by you deposited.
Note that EzExchange only links buyers and sellers and does not make any direct purchases or sales.
Explanation
If the value of the dollar changes after the payment of the rial until the purchase of the dollar, the difference in the value of the whole transaction remains with the company until the parties have agreed.