Samsung — Mobile phone charging issue.

I purchased one samsumg m31s mobile from amazon on14/03/2021.After some days my charger failed in charging my phone.I felt disappointed, but i ordered new samsun original charger from amazon.After some days my second charger also failed in charging my phone.But this charger is working with other phones.All other same chargers are working with my phone, except samsung original charger.My phone is under warranty period, but when i approched samsung service centre they said that around 1500/- needed to clear my phone issue.First time i am getting these kind of bitter experiences with samsung mobiles.I dont know why i need to pay under warranty period because only samsung original charger is not working with my phone.Please make necessary arrangements to clear my phone issue otherwise, we the customers will loose our faith in samsung mobiles.
Hareesh