Yah man, they didn't gave a visa to my father too last year when I had invited him for my graduation. He applied twice but he didn't got one. He is 65+ but still even on son's graduation, he didn't got visa. My mum had already a visa as she came a year before to see me so she had a visa but I felt so low when I can't have my father who brought me to that point on that graduation.
It reallly sucks !!!!