It is not clear from your post what you are trying to do. Are you applying for ILR or citizenship? If you read your post, you may be able to tell what you want but someone who is not familiar with your situation cannot figure this out because you have not explained it. For ILR or for Naturalization, you don't need any documents from college merely specifying your qualification is enough in almost all teh cases accept if teh basis of stay is Education. If you are trying to avoid the Life in The Uk test, you will be better off taking that test then trying to prove it that you have degree unless you have specific ESOL or ESL course certificate that is required instead of Life in the UK test.