How to write a written complaint about goods or a service

Short answer

File a complaint in writing with a description of the defect, the purchase date, and your requested remedy (repair, replacement, or refund). A registered letter with a tracking number is proof you filed it within the deadline. In Postbot you write from a template, check the preview, and pay a firm price up front.

Steps

  1. Open the complaint template. The button below takes you to Send a letter with the text pre-filled — add the defect description, purchase date, and order number.
  2. Check the preview and seller's address. You'll see the exact PDF and the firm price up front — nothing sends without your confirmation.
  3. Choose registered and pay. A registered letter comes with a tracking number. We print, envelope, and Česká pošta delivers it.

Frequently asked questions

Does a complaint have to be in writing?

You can also complain verbally or in person, but a written complaint with a tracking number is clear proof of what you complained about and when.

What should a complaint letter include?

A description of the defect, the purchase date and proof of purchase (order or receipt number), and your requested remedy — repair, replacement, or refund.

Is an ordinary letter enough, or does it need to be registered?

An ordinary letter is enough if you don't need proof of dispatch. For a tracking number and peace of mind, we recommend registered.

How much does sending a complaint letter cost via Postbot?

Ordinary from 50 CZK, registered from 110 CZK — you see the exact price in the preview before paying.