Speak to DVLA at Swansea?

-How can you speak to a real person at DVLA Swansea instead of the recording that goes round and round is there a secret telephone number??? HELP PLEASEThe above will only give you the 0300 790 680 1 or 2 number unless you have a letter from them with a direct number on it, and it's querying the contents of the letter.
01792 782341