I do not agree.
Chargebacks should not be considered as an option, as it should only be used as a last resort. They are not intended for people who simply decide they do not like the service they are getting..... if you paid for a service, and are getting that service.... do not use a chargeback, as it is unfair to the company.
If your intention is to cancel your account after taking it for a test drive, then just look for a hosting company that offers a money-back guarantee.... I think you'll find that most do.