SAIBA horrible nightmare

I had a SAIBA membership which I cancelled in 2017 June. I struggled with a lot of things and felt that the membership was not serving me. Eg they could not give me Letter of good standing when I needed it even when the account was paid. Worse thing is that they couldnt give me any reason for not providing good service to me. Their own consultants seem to not understand much. After cancelling membership I was told telephonicaly that its done. A year later I was sent an invoice and received calls for the payment for the membership. Each time I had to explain same thing to different people and sometimes few times to the same person. I even asked yo be removed from mailing list and also unsubscribed from their emails but all of that did not help. This has been ongoing since then. They are silent for sometime and start again. In 2020 they are contacting me again, telling me that I have an outstanding invoice. All of this assured me that I made a good decision by ending my membership with this highly unprofessional organisation. I wish I never joined them from the first place. Horrible service even after one has left them.