Is it okay to tell the truth?

I was wondering if I’m allowed to speak the truth here?
Basically, I want to know if it's okay to share my experience regarding a bad purchase I made at a local pawn shop.
Is this kind of thing permitted on the forum?
Am I allowed to mention the business by name?
Also, is a pawn shop legally required to provide a receipt for items sold?
And one more thing—if someone buys something from a pawn shop through an online marketplace like eBay, does that transaction still fall under the site's terms of service that the user agrees to when posting?

Thanks in advance...

So, let me get this straight—your very first contribution to this subforum was a question about whether or not one is permitted to tell the truth?
Well, here is your answer:
I find myself wondering how such a detail could have escaped you, considering it is explicitly laid out in the community guidelines. One would assume that a user might take a moment to review the rules before deciding to pose a question, wouldn't they?