No installation service

We bought a Aircon at Makro and with the purchases we also bought a voucher to install the aircon. The service are outsource to SERVISURE where I spoke to Christine. The aircon was scheduled to be installed on Wednesday the 16th no one pitched. On Thursday we enquired and complained they had many excuses for them not being able to render a service. They then reschedule and they were suppose to install the aircon the same day at 14:00 no one pitched again. The guy phoned as at 18:00 and said his in Centurion and could not locate our adress. We explained that he should return on Friday. Today at 08:00 he never pitched. I phoned SERVISURE asking for a refund. I also spoke to Joe Erasmus at 10:00, but at 13:00 still no responds. This is the most pathetic and unprofessional service we have ever reserved. Still awaiting feedback and our refund. Truly unprofessional.