Is this your first bill with koodo? Or did you change plans in last month? If the answer yes to either one of those the likelihood is that you have proration. Standard practice and no you are not actually paying more. Phone companies charge a month in advance plus the partial month from your date of activation or when you changed plans. The third page of your bill breaks down the details of everything, I'm sure you will find the answer to the $46 there too.
Give Koodo customer service a call. We here on the Community can't access your account, bills or anything of the like. They'll be the ones who can really give you a detailed explanation as to why you bill was high, and why the 10% BYOD Discount wasn't applied.