The Sam Vimes “Boots” theory of socioeconomic unfairness, often called simply the boots theory, is an economic theory that people in poverty have to buy cheap and subpar products that need to be replaced repeatedly, proving more expensive in the long run than more expensive items.
I had that problem with a phone once. Turned out the port was just caked with lint from being in my pocket all day. It wasn’t enough to simply fire some canned air in there and blow it out, I had to get a thin piece of plastic (don’t use metal so you don’t wear out the connector pins) and scrape the inside of it, and I couldn’t believe how much kept coming out. Get a bright flashlight and keep going until you can see the wall at the bottom of the port.
I also started using a wireless charger to reduce how often I need to jam a cable in there in the first place, and now my current phones has been going strong for 4 years.