I'm battling a particular registrar to get the UDAI for two domains a new client of mine has.

For Domain A they advise me they've emailed it to the technical contact of the domain (fair enough) but I'm yet to receive that email (now waiting 5 hours).  I've sent test emails to that same address which arrive immediately.  They won't give it to me over the phone (even though they ask for username/pass to verify on the phone) or send it via fax.  Is it reasonable they won't issue it to me any other way?

For Domain B, even though they are listed as the registrar, they won't issue the UDAI as the domain was originally sold by one of their resellers.  The reseller says to contact the web-hoster (??), and the web-hoster says to contact the reseller.  Am I not right in thinking that as the registrar (as according to a whois) they are able to issue the UDAI, regardless of who the reseller is?

Very frustrated at this stage, I won't say who the registrar is, but if this continues, I'll name and shame.

Any ideas anyone?