Im in Canada, I recently filed my taxes with HR block I was supposed to get close to $3500 back accord to HR Block because I hadnt filed for two years(at least Im 95% sure I have). 

I just got a payment from CRA and the amount is $1500 short. My question is does CRA direct deposit in installment ie I should wait till the end of next week?

Or should I alert HR Block? Also, in the 2 years I was a student and was done in May 2015. And I worked several jobs.

Next is there a way I could see if I filed my 2014 taxes because like I said Im 95% sure I didnt file. I waited to do it all this year (and yes I know I should be doing my taxes every year)