Failure to execute instruction/Poor customer service

It has taken 4 days and 4 trips to Vodacom Shop in Woodmead Retail Park to get my contract upgrade and now we going to day 5/trip 5. I was called three times in those four days to tell me that my phone was ready for collection and that i should come to the store to pick it up, however on arrival i found that the phone was in fact not there as no order had been placed. Eventually a FANTASTIC Herman places my order and shows me evidence of that and advised me to come to the store on Thursday 05 May 2016. I get a call from the shop again today (04/05/2016) telling me to come to the store to pick up my phone. Reluctantly i go and i get there and the phone cannot be signed out because the system is offline. The guy who called me to come in lies to my face that the system was online when he called however the Manager says the issue has been going on since Saturday. I completely understand system failures and hold little grudge towards that, however the issue comes in the Manager (Tanya) not even willing to attempt to better the customer experience by assisting with delivery or even waiving the contract upgrade fee- considering that i have come to the shop FOUR TIMES upon THEIR request. All I got was "there's nothing I can do about it". They have completely inconvenienced me and are not willing to even make an effort. Please can someone contact me to address my grievances.