I have a copy of 'Honour the Air Forces' which lists 40,000 names for awards to UK & Commonwealth aircrew in WW2 and he is not listed there. I cannot find him in the London Gazette either.
If you really want to uncover the whole story, your best bet is to apply for a copy of his service record under the Freedom of Information Act.
Forms can be downloaded here
RAF Community - Request for Information from Service Records
Regards