I think my iPhone charger is about to break?

I broke my last one somehow. I had it for a year and it stopped working and I have to wiggle around the charger to make it work until it completely died so I bought a new one at Hastings and it charges but if you move the cord to far to the left it will stop charging. I'm afraid it is about to break. What do I do?

Go and buy a proper one from the apple store. They are more expensive but the best quality and will last for ages.