High PSD Calls - query closed but NOT RESOLVED!

I raised an online query regarding the high billing for OCT invoice - the item has been closed but my query hasn't been resolved.<br> How is it that my bill has suddenly increased from an average R560 pm to R4642,86????<br> As per the unbilled details for OCT (I haven't received or can see the OCT invoice), PSD calls alone is R3600.. How can this be considering I have a recurring bundle, have bought an additional once-off 500MB bundle AND I use my home and office WIFI. <br> <br> This is the feedback on my online query - Reallocated to group 'MTN Active Support Hub' on 06/11/2015 at 09:13:03 Picked-up by 'Tsholofelo Majafa' on 09/11/2015 at 13:09:27 Good day Thank you for submitting your request. Kindly contact *** for credit limit related issues or e-mail credit management on [Email Removed] . We apologise for the delayed response and thanking you for co-operation and continued support. Kind Regards, MTN Active Support Ac <br> <br> I called 808 many times and your agents are just as unhelpful! I want the content for these alleged calls as some reflect as 01h22 in the morning which is ridiculous!<br> Is someone going to contact me to resolve this because I refuse to pay!