Unacceptable treatment from GIBS and slow in rectifying their errors

I was enrolled for the MPhil IB programme scheduled to start in May 2021. After paying my deposit in November 2020 I received no communication from them regarding the registration process, lecture time tabetable and all other information I would need to prepare for the start of my studies. However, about two weeks before classes were meant to start I had received no information whatsoever and after sending numerous emails and making phone calls I had received no assistance. As a result of this, classes started without me. Only after the programme had started did I receive a call from one of their staff asking why I was not attending classes. I then explained that this was because I had not been provided with the necessary info to attend. The explanation provided to me then was that due to a 'system error' the information had not been sent to me. However, this person that called me to follow up on why I hadn't attended is one of the people I contacted to get assistance before classes had started and they didn't bother to respond. Anyway, as the classes had already started and it was too late for me to make arrangements with my employer, I was offered the option to defer my attendance to May 2022, which I was fine with, given the circumstances. Fast forward to May 2022 the same issues happen- early May and once again I do not have information on registration/ class schedule. I send an email which goes unanswered. I send a follow up email 10 days later and only then does someone respond. By then, registration is done and classes have started. I am provided with the same reason for not receiving the information- admin errors. Again it is too late for me to make arrangements with my employer to participate. They offer me the option of deferring my registration by yet another year, or switching to another degree/short course starting later this year which i am not interested in. At this point I do not want any more involvement with this institute and just want a refund of my money and nobody is able to give me a straight answer regarding this. I am just told that they are working on it but receive no tangible feedback. This has been a very frustrating experience. Never did I expect to have such an unpleasant experience from such a prestigious Institution. Please resolve this issue ASAP. You have inconvenienced me enough!!!!