********** account

I relocated to Zambia in September 2018 for a 4 month secondment. When I came back home in January 2019, I discovered that a ********** account was opened in my name. I reported the matter to Vodacom which they investigated and they found out that I was a victim of Identity theft. I called Vodacom a countless times to close the account because I kept on seeing the account reflecting on my credit report and I was getting calls from their agents asking me when I am going to payback the money. Last month February 2020, I received a letter of DEMAND from vodacom wanting me to pay for a contract I know nothing about. I really feel harassed by Vodacom. Can someone at VODACOM do their job and close this damn account. I am getting tired of this matter.