Mirry2
I have a theology degree (BTh). So I am entitled to have oxon after my name, but am not entitled to upgrade my degree to a masters (as the ba/ma normal Oxford students do).
This is from Wikipedia and explains it: (Wikipedia page on Oxford degrees)
"The BTh is awarded primarily to students of the various Theological Colleges and Halls enjoying some sort of associate status with the University, such as Wycliffe Hall, St Stephen's House, Ripon College (Cuddesdon)[2] and the former Westminster College, Oxford. Usually, these students are candidates for the ordained ministry of one of the mainstream Christian denominations, but may be drawn from any faith background or none at the discretion of the College or Hall. It should not be confused with the degree of bachelor of divinity (BD), which is a postgraduate degree.
The BEd was formerly awarded to students residing at Westminster College, Oxford, Culham College of Education, The Lady Spencer Churchill College of Education and Milton Keynes College of Education (formery the North Buckinghamshire College of Education)who read concurrently at the University."
Essentially, for my degree and pgce, I was not a matriculated student (did not matriculate until my degree ceremony at the sheldonian theatre), but had several lectures at the various Oxford colleges, joined the Oxford uni students union, but seminars were all taught within my own college.