FRUSTRATED AND ANGRY!!!

i had a parcel leave the UK on 8 May 2018, according to Royal Mail it was accepted in South Africa on 12 May 2018, but for some reason it only showed up on tracking on 23 June 2018, more than a month later. I have then tried more than 60 times to contact EMS contact centre and have only gotten through once on 27 June 2018 , to which the lady told me the parcel is at JIMC and it takes 2 days to process and then i can collect, i asked since i called on a Wednesday, hasnt it already been 2 days and she said she would transfer me to someone else who can help, i was then cut off and have not been able to get through again, it just rings and then cuts off. I then went through on Saturday and was told collections is closed on a Saturday, but that i could leave my details and they would contact me. No one has, i then went back on Monday and was again told to leave my details and i would be contacted. i was then told my parcel is there, but that customs hasnt cleared it, a process i was originally told only takes 2 days (we are now on the 6th business day!!!) i was then given a number and told to call on Wednesday morning and she will check if my parcel has been cleared. this is an extremely urgent parcel and i cannot understand what the hold up is!!! International tracking RU ********** 60GB