Why should God answer your prayers?

This message is for the non-believers out there. Why do so many people reject Jesus Christ despite the millions of testimonies from people who have been blessed and changed by having a relationship with him? If your prayers aren't being answered is it really because God doesn't exist or is there another reason? Could it be something that you are doing or aren't doing that's preventing God from hearing your prayers and answering them? Please hear me out. Your eternal soul may hang in the balance and maybe I can offer some insight and help you to find God so you can also have a testimony of his salvation. God can use anyone to deliver his message. He can even use a donkey to speak to stubborn people and today he is even using me.