[Resolved]  Samsung — samsung a30s voice issue

I bought samsung a30s in the month of november for my mother. Generally she uses the speaker option for dialling and picking up the phone. Just day before yesterday we noticed that there is no volume while dialling through phone (Without speaker) could be hear the ongoing ringing of another phone. I want the product to be replaced. I have never experienced any issue in any other brand’s phones this early. It’s just 3 months and the basic thing is not working in this phone. Really disappointed of samsung products specially phones!!