Ah the joy of customer service scripts
I can remember years ago when I was trying to move broadband provider and they (eventually) said they would email me a code (PAC?) to enable the new provider to take over, or something like that. 3 or 4 days later and no email has arrived, so I call the customer services to enquire and they say "We sent you the code 3 days ago", "well I didn't receive it". Confirm email address (that they were providing / hosting) "Okay, I've sent it again just now" "Okay, well I've just refreshed my inbox and there's no email from you, though one from elsewhere". "You need to clear your browser cache", "erm... I'm not using webmail, it's a POP3 client". "You need to clear your browser cache" [repeat for 5 minutes]. I don't remember how it was ultimately solved, though I know I managed to change provider soon after.