******* blacklisted handset

My handset got *******ly blacklisted due to the non payment/bad debt of another company. My contract was transferred from another company to my own company 21/01/2020 and has been paid ever since, the handset installment as well. 5th of october my phone went dead, when I called customer care they told me my handset was blacklisted due to bad debt. The more I am trying to explain to them but this number and handset was transferred from that company and has been paid for 9 months already the more they are sending me from the one department to the next and guess what? For 2 days now, I don't have a phone..one I paid for the whole time. Never ever take a business account from vodacom, it's gonna cost you dearly!