Bad experience ever

What a bad experience. In 2015 I registered for Project Management (Diploma) with Oxbridge Academy, which is the agreement between Me and Institution, Later in 2018 one of the Consultant called me and tell me that the course I registered for doesn't give Diploma any more, I can continue with my studies but they will issue me with Certificates, the issue with institution is, I registered for Diploma not Certificates, and the full amount has been paid for Diploma not Certificates, I've trying to contact them with calls and emails but no one seems to be interested with my matter. On the 29th April 2019 I sent the email to ********** as advised from every consultant I've spoken to, but doesn't help, Megan from that sent me an email and advised to get back to me, I'm still waiting till today, that's why I don't want to deal with people that don't care about their students, I believe and think it's better to get my refund then I can register with institution that cares about their students. I'm more than disappointed with Oxbridge Academy.. K **********