Poor client service

I called in on 27th November to get a settlement amount. The 1st consultant was rude and told me to hold on after providing all my details, then she dropped the call. I called back to ask whom I spoke to as I would like to speak to the manager. Tougeeda was the 2nd consultant I spoke to which ensured me the manager ( Chwayita) is in a meeting but will call me back asap. I settled the amount and spoke to Tougeeda in the week afterwards again to inquire why I'm still getting SMS and reminders that I need to make arrangements for a debit order. I phoned this morning and before I called say anything the consultant Thuli dropped the call in my ear again. Can this service please be addressed as no manager or consultant calls back and I don't owe Wonga anything so please don't debit my account or send me reminders.