Micromax Informatics — battery charging

My phone is not working properly whenever i charge it always doesn't work and i need to replace it or i want the money back i want you response quickly please i keep charging for 2 hours but i see it's only 10% i want my money back or i want to replace my mobile quickly and it quickly gets discharged within 30 minutes and i even cannot work on it or talk to someone please replace it or give my money back