Avoid Kirby Edenvale like the plague!

I have owned a Kirby vacuum cleaner for about 20 years and bought it because of Kirby's promise of life-time repairs and rebuilds. Kirby Edenvale is the local supplier and they were previously pretty efficient whenever we needed the machine to be serviced or repaired or needed to order new bags or accessories. In the past decade or so, however, they have persisted in making unsolicited calls to offer us services we DON'T need, like carpet shampooing attachments (we have no carpets) and they've simply ignored multiple requests to remove our number off their sales consultants' database - I have repeatedly said to them, "don't call me, I'll call you if we need anything from Kirby", but a month or two later and there is another unsolicited call, sometimes after-hours. Last year we actually DID need them, as our machine suddenly wouldn't turn on. Three times we made an arrangement for it to be picked up for a diagnosis and repair, and three times Kirby broke this arrangement with no explanation or notification. We gave up and bought another brand of vacuum cleaner. Today, however, I received another unsolicited call offering me carpet shampooing accessories - and consultant Vuyiswa had clearly not been briefed not to call us. I explained the situation to her and we ended the call, but I then phoned back to ask to speak to the branch owner - only to have Vuyiswa repeatedly hang up on me. I eventually got the office number off the internet and spoke to someone called Isabel, who recalled my name and my previous multiple requests to be removed from their database but could not explain why this was not done. She also could not (or would not) supply any contact details - cell number or email address - for branch owner Hein Miller, and could not say when (or if) he would be available to speak to me. She did advise that she would ask him to call me, but many hours later he has not done so.