This was the response I received when I was trying to reinstate my current call sign (it all got sorted in the end) -
Dear Mr Evans,
Thank you for your email, the details of which have been noted.
The purpose of a call sign is to identify a station, be it a ship, amateur or any other station. The Radio Regulations reflect the agreement reached by the international community on how radio should be managed and provide that stations must be clearly identified. If a station has more than one call sign, its identity is ambiguous, placing the UK in breach of its obligations to the international community. As you have one station you should not have more than one call sign.
Therefore, in light of the above we must regretfully decline your request for an additional call sign.
We apologise that this may not be the desired response.
:: Denise Young
It’s all a bit of a mess.