Cancellation of services

ADT is utterly clueless, *********** and the worse entity I've ever dealt with. I had a home and flatlet with ADT. I cancelled my services one month in advance during September 2017 (yes 2017) as our neighbourhood watch recommended all residents to switch to a new provider. I specifically stated in my notice to cancel the main house and the flatlet. ADT only cancelled the main house and continue to charge for the flatlet which I then ask my bank to reverse. I contacted ADT and they confirmed via email that the services have been cancelled in October. They continue to take monthly premiums and the bank continue to reverse the debit order. Eventually someone from ADT contacted me and we agreed that the contract had ended in October 2017. About 1 year later a month before I immigrated to Belgium, I received notice that I still owe ADT for the services on the flatlet. I had to explain this over again to them. Once I'm in Belgium, my son informed me that he is getting legal notices on his cell phone from ADT / Nimblegroup. Again I contacted Nimble, explain the details to them. They then ask if I can provide proof of cancellation. I provided them with the emaiil confirmation from ADT. I heard nothing from ADT and Nimble for 6 months. Today, my son advised me that he is getting the same legal notices from Nimble again. I have given up. They are impossible to deal with. Fortunately I live in Belgium and I tried my best to be a good corporate SA citizen to resolve this from abroad, I am going to let it go now, after all, I have immigrated. They must try to see if they will get a cent from me and incur extra legal costs. We will most probably end up in court and I would love to present the judge with all the evidence. Perhaps that is the only way to get closure on the matter and it will give the media a nice story to report on as well.