I don't understand your second line. If an agency is doing a site for a client and it's not accessible to their customers, then they've failed to do the job. Th

I don't understand your second line. If an agency is doing a site for a client and it's not accessible to their customers, then they've failed to do the job. The client wouldn't say "oh, we'll pay you the same amount again to fix it" they'd say "fix it at your own expense".