I agree with E Fidan. Firstly they never give a straight forward answer. You should have received a letter from them stating that they have taken your payment and that your application is passed on to the next department for screening process. If you havent received this letter after 4 weeks, then you can call them if you 100% that the payment has been taken. I hope you registered your application, so that it doesnt fall into wrong hands.
Then from the time you received the letter, it might take anywhere up to 14 weeks to process the application.