You should file your return. All your queries will be solved.
In the return, if you are entitled to refund, you can state your bank details where in your refund will be given to you.
Needless to say, you will be refunded that amount in your bank account which you provided earlier, when your return is processed. It usually takes a month for the refund to be credited.
If you want any assistance in filing your return, you can book my services from this link.