加拿大政府官网甚至列出了英文信的样本，方便大家准备：(地址)(日期)(联系人，如果有的话)(职位，如果有的话)(公司名字/地址）
Dear (xxx):
Re: (account number/reference number, if applicable):
On (date), I (bought, leased, rented, had repaired, etc…) a (name of the product with serial or model number or service performed) at (location).
Unfortunately, your product has not performed well (or the service was inadequate). I am disappointed because (explain the problem: for example, the product does not work properly, the service was not performed correctly, I was billed the wrong amount, something was not disclosed clearly or was misrepresented at the time of sale, etc.).
To resolve the problem, I would appreciate (state the specific action you would like: money back, store credit, repair or exchange, etc.). Enclosed are copies (do not send originals) of my records (include receipts, guarantees, warranties, cancelled cheques, contracts, and any other documents associated with the purchase or service).
I look forward to your reply and to you resolving my problem, and will wait until (set a time limit: usually 10 working days is sufficient) before seeking help from a consumer protection agency or filing a complaint with the Better Business Bureau. Please contact me at the above address or by telephone at (home and/or office number with area codes).
Sincerely,
(你的名字)信附上证明的文件复印件。 第四步如果公司仍然没有给满意的答复，那么可以联系政府机构。比如多伦多的话就可以联系安省政府的消费者投诉机构。