Dissatisfied disgusted first time client.

I am extremely unhappy with the service I received from fedex. I had sent a parcel to the USA on 25 May, to my pastor. He received the WRONG parcel at end of June. I immediately notified fedex and they acknowledged my concern. Up until today no one has helped me, I had sent 2 pairs prescription glasses and what was delivered was a box full of cheap bags. Linda at customer service is of NO HELP her manager Martha is even worst doesn't even respond nor answer their calls. She keeps telling me that the parcel was delivered and ignores the fact that I have told them in June already that the wrong parcel was delivered. I have asked if I have insurance. No one answers, these glasses cost Alot of money and dedex just doesn't care that these were lost on their watch. It's been 4 months we demand our money back for those glasses. I have tried numerous times but absolutely No One at fedex is interested in helping their clients. This is the worst customer service I've experiences ever. I need to get these glasses sent to the receiver as he needs them urgently.