Threats to suspend membership whilst problem is Bonitas inability to solve internal systems problem

I left the company I worked for at the end of April 2017 and made arrangements to pay my Bonitas membership monthly by debit order. The arrangement was confirmed by Bonitas. I have since received regular SMS and email threats of suspension of my membership because the debit order has not been activated by Bonitas. I then pay by EFT and follow up by email and calls to their call centre - to be told that it has been rectified (call reference 190617QB747K; query number 190617QB7J40) . I however again received a SMS on 6 September 2017 that my membership has now been suspended due "the non-payment of my July 2017 contribution". This is unacceptable and now amounts to victimization as the problem with deductions is an internal Bonitas problem and my contributions have been paid anyway - per EFT. Calls and emails to Bonitas are of no use - the issue is indicated as resolved, to be followed by another threatening SMS within the next month.