Trying to set private nameservers using the 'host names' function on Godaddy.
I tried last Tuesday, and it didn't stick - no glue. So I wiped the settings in 'host names' and tried again, now getting the following when using IntoDNS.
out-of-zone-zhzdmcjc9o761g2s.de.  (NO GLUE) [TTL=172800] out-of-zone-hepseclqz5o1p3nw.de.  (NO GLUE) [TTL=172800] out-of-zone-3jh7lwcw8wgy52zo.de.  (NO GLUE) [TTL=172800] out-of-zone-ohoh4igtmm5pldah.de.  (NO GLUE) [TTL=172800]
It should be:
ns1.photographersinkent.co.uk, ns2. etc etc up to ns4.
Were you still having trouble with this? If so, could you follow up with the domain name that you were having trouble setting the nameservers on? A member of the Community might be able to take a look at the domain and let you know what they see.