wedding gift late for the wedding

I was expecting a delivery on the 7th of July 2015 from Skynet. Wednesday the 15th in the morning I called to found out what happening with my delivery. I was told that my parcel have been with customs from the 4th of July, and I must make payment and send proof of payment and I will be delivered by Friday. Thina Tseisa was the lady I was talking with. She then sent me my invoice on a no reply email but with no email address to send my proof of payment. I made payment around 9 in the morning and tired to get hold of Skynet so I could request email address to send my proof of payment but could get hold of them the whole day. Friday morning I could to found out the whereabouts expecting I will be told it on my way, unfortunately I was requested to send proof of payment. I then send it in the morning and I then send an email to Hendrick Makubung the manager explain my situation after trying I don't know how many times on the phone. I left massages to his colleagues and on my email hoping he would call. Saturday he send an email apologise. Didn't even bother to call. Monday I call to found out, it still with customs. Sent an email to him and still no reply.