**** to and ****** - with no feedback after my complaint

I recently had a very bad experience at a SPAR in Zimbabwe (been **** to and ****** by an employee), and on return I contacted the head office to lay a complaint. This was going to be escalated to the person in charge of the Zimbabwean branches, but no-one bothered to come back to me. A few weeks later I phoned again (10 October), were given a reference number, and told that someone will get back to me. It is 7 November now, and still no word! This is totally unacceptable and I will never support any SPAR again, and will also make sure that all my clients and guests will never support any SPAR ever again!