You do not have to worry. Since you haven’t been able to obtain the full TOEIC certificate about the 4 skills required, you will be requested to take the English onsite test here at NABA in October during your first days at the campus. This way, if you reach the required level through the test you won’t be required to submit any further certification.
You will receive further information by email about the test which is completely free of charge and is especially devoted to those student who – as it is the case for you- have encountered some difficulties in obtaining the language certificate in due time.