Poor Service Skynet Couriers

I orderred a some bicycle parts from an online UK store and paid express shipping fees for an estimated 4 day delivery. Taken into into account the public holidays I added basically one day to the delivery. According to the tracking information the parcel was scanned in at Skynet on Monday 30 April 2018. Friday 4 May 2018 I contacted the call center to enquire the whereabouts of the parcel as the status did not change. I was transferred to the ORT Department where the phone just rang. I send an e-mail as well enquiring about the status of the package. Monday 7 May received an e-mail asking for contact details, as soon as I forwarded the mail received a call asking for more details. I send an e-mail again asking for more details on the process further. This is now close to 24 hours later no feedback and 8 days later since parcel arrived in SA with no idea on when delivery will take place or even next steps in the process. I could've opted for normal postal delivery if I did not need the part, but I paid much extra for express delivery. This is not accepatble at all.