This is from the perspective of a customer. I bought some supplements from a fairly reputable website. They sent me a weaker version of what I ordered (and half the price of what I ordered, which is my main problem).
I have emailed them via the address in the order confirmation (not a noreply, the address they put in the email) and I've submitted a ticket through the contact form on the website.
It's going on a week with no response from them aside from the automated. As folks who run e-commerce sites, how long do you think is valid before having my CC company issue the charge back? I'd like to reorder the right thing, I just don't want to pay double for something that I didn't order. Trying to be fair.