student visas – Refusal to enter Canada to study, two times

During the last 3 years, I applied 2 times to study in Canada, both times they rejected my request for a study permit. Is it logical that I apply for the third time after 2 times of refusal?

The first time I was admitted to college and I did not have IELTS, so my admission was conditional on taking a language course. The second time I offered high financial documents (to prove that I can handle my cost) and I was accepted from the university and I had an IELTS score of 6.5. The reason for my rejection was based on the purpose of visit section both times.