I had the unfortunate experience of dealing with this company.
I am a masters student and needed help with one piece of coursework. Buying help with university work was a moral dilemma for myself, but due to several factors I chose to go through with it, and chose Oxbridge.
I gave the company 4 weeks notice with a detailed explanation of the help I needed. I heard nothing for 2 weeks so contacted the company and was reassured that everything was in hand and there was nothing to worry about. The deadline for me receiving the work approached and passed so again I contacted the company. They once again reassured me everything was fine, there was nothing to worry about and the work will be sent over soon. Days passed and nothing. I tried repeatedly to get in contact with the company to no avail, I was promised a call back 3 times, none of which came.
My university deadline came, and I was left with 12 hours to do the work which I had paid for, and more importantly, was promised by Oxbridge. I got a full refund, and the explanation was simply that it beyond the scope of the writers. This is all well and good (although they shouldn't advertise help with MSc level work if they cannot provide it) but the lack of communication was despicable, and has realistically cost me a module and another term at university, costing me huge amounts of money and unnecessary amounts of stress.
An extremely unprofessional company in my opinion. Avoid!!!