Earpiece speaker fell out

I cracked my screen (front) and when it came back from getting repaired I noticed the speaker beside the camera , the earpiece I think?!, had moved a little . It has never been the same since (it was six months ago) . Sound was fine but speaker kept moving about . Eventually it fell out completely and I lost it but all sound is working great ! What should I do as I don't want to pay to get it replaced but know I won't be able to do t myself???