What is wrong with LIBF and IU?

I don't like to have to write the review of a business. I always try all possible means to resolve the matter amicably. However, iu and LIBF have shown me that no matter how reasonable you try to be, some businesses have simply a lack of respect. Perhaps I should warn others because on paper iu looks like a great prospect for a south African or a student in south Africa wishing to pursue studies at a german (iu) or UK (LIBF) institution. until you realise that the admission office is clueless. For the Masters in Data science, I provided Under grad, post grad quals including an MBA and doctoral courses done in the UK. I was then told that my advanced diploma in finance and post graduate diploma in finance are not Bachelors' equivalent, even though an institution catering for South African students would know the National Qualification framework which clearly specifies that advanced diplomas are bachelor equivalent and Post grad diplomas are honors equivalent. After providing the NQF in hope to clear up the misunderstanding, the institution refused to admit my application. LIBF chich was using the same whatsapp as iu for some reasons then requested a lettre as proof of employment and experience in data science, this was provided and all requirements for admission for a professional Masters should then be met. I have been waiting since and silence radio. From time to time after inquiring again on my application, I am asked to provide the same documents which were previosly requested. What on earth is wrong with these 2 institutions or the admission process. It is ridiculous that at the same time I am being given the rounds, other institutions such as the university of London and OPIT responded and admitted me without wasting my time. I am yet to receive a call or an explanation why these 2 institutions are behaving this way when handling applications from south Africa.