Frustrated with Samsung

Good Morning. I purchased a Samsung A032 from the Meadowdale branch in Edenvale. I purchased this phone for work purposes as I have been unemployed since covid. I am 54 years old and really need to make some sort of income. Within two weeks my phone started giving problems. I paid cash for it which I had to borrow. I took it back to the store and the said it must be sent in to Samsung and this will take 3 weeks. I could not earn any income in that time. I now received my phone bavk and in less than two weeks my phone is now not showing me video clips. It is all blury. I need the videos because of the work i am trying to do. I took it back to the store and was informed they cannot do anything, and that the phone must go in again. I explained I need my phone for work as i have lost everything. They said they cannot help me. So please I am begging for assistance with regards to this matter. They could not even give me a loan phone. My problem is that this will be the second time in such a short period that my phone needs to go in. Please help. Thanking you kindly. Sharon Du Toit