SADV REQUESTING PAYMENT FOR SERVICES THAT WERE NEVER PROVIDED

good day ,account no TWF354 SADV is one of the most pathetic and unprofessional service and accounts department ever , SADV wants me to pay for an invoice which they never supp**** me with internet and they want payment i have all the proof on email to SADV regarding no internet was being active on my side on 22-09-2020 reference no.*** and they reply was from Tomelo Sisa stating that SADV is under a legal matter im sure its because of your unprofessional workers , and you want me to pay for the invoice that i never received services for and none of your accounts department bother solving a simple matter and im liable for a refund because i have paid for the whole of september but i only received sadv fiber services till 22-09-2020 , coming to the point the time you knew you had issues you email me stating you are under a legal matter why didn't you close my account on the same day you send me a mail , since october SADV has been mentally harassing me requesting payment this is my last approach to solve this if this issue is not resolved i have be forced to log a ***** complain and post everything on social media with all the proof i have and just so you know your the not the only internet service provide i use but i have encountered such problems with any of them clearly it show how professional your company is .