[azizouma]

That's interesting, thanks

4. As referenced above the "problem" with the product to use in the method.

And so what kind of problems do you point out to the after sales/quality service? For example, can you give us an example of the problems you reported for the coke and for the cigarette cartridge?

3. I recommend making an excel spreadsheet, with the name of the company, a list of common defects products are known to have, and the customer service line, or contact page url for.

>Flat Soda
>Stale cigs.
>Damaged products.

A few tips try browsing customer complaints for common problems. Compile a list, check out recall news for products. etc.

Thanksss !

Do you always do it by phone or also by email/contact on their website ?

Do you stick to products under 20 or did you succeed on less cheap products ?

Did you tried with bottles of alcohol ?