Horrible horrible service again

Again, I have received horrible service from vodacom. This is where I draw the line. On 27 February I had a problem with our voip phone and I called the customer service. A technician came and fixed the problem but created another problem which took them 7 working days to fix. The phone only worked for 1 day and the same problem I had initially logged a call for is back and now I have to wait for them to escalate. We use this phone for business and this has negatively affected us. This is not acceptable at all.