I recently had my earbuds replaced because of a sound problem, and the pair I got as a replacement is just as bad. What do I do?

So my earbuds for my Iphone 5 (the standard ones that come with it, with the volume up/down and pause/play button) were having a problem where songs and vidoes would randomly pause themselves or open up Siri, and there was also no sound coming out of the left earbud. I took them to the Genius Bar where they were replaced with earbuds that didn't have the middle volume up/down thing. I used these and they seemed to be fine, but about a day later, there was no sound coming from the right earbud. Should I go back to Genius Bar and have these replaced too? What could be causing this and what is a solution? Should I just give up on Apple headphones and buy my own?