2013 Homechoice order still harassing me

In 2013 I ordered a bedding for my bedroom at homechoice. on the day my order was supposed to be delivered I was not home to receive the order. But there was someone how is a tenant at my house, and when they tried to leave the parcel with him, he told them that he cant take the the order on my behalf. so he told me the the delivery person left with the parcel. Instead of the delivery people calling me to inform me that my parcel was returned back to the store, I was not informed about my order. After a couple of months in 2013 I started to receive letters that requested me to pay for the order that I did not receive, after I sent them an affidavit that informed Homechoice that I did not receive the order then they no longer contacted me about the order. In 2017 they started to contact me again, when I tried to explain to the call centre agents that i did not receive the order they would tell me that they do not have what I told them on record, now in 2017 they made my life difficult, call centre agent after another calling me telling me that I should pay. I tried to apply for credit last year and I was told that I was listed with the credit bureau by home choice and now it appeared as if Im paying R4000 per month and the amount that appeared, when the bank calculated with my other expenses, they discovered that it was more than my salary. I was shocked when I went to the bank that after 4 years, the homechoice issue was still following me, the bank then requested me that I should request the letter from homechoice to clear me from their list as a person who owes them. I then contacted homechoice to clear me but instead I was called by people from the call centre to tell me to pay, when I told them my story, they failed to assist me with the issue at hand. the call centre agents would call me almost everyday with the same story and still no help was offered to me, to the point that I changed my cellphone number because I was now tired of being harassed on my phone daily by the same people were supposed to help me. Now this year in 2018 they started to call me on my colleagues number as she has an account with them, now when I answer them and tell them my story they would hang up because they did not know how to resolve the issue at hand, when I asked for contact details of the relevant people that I should contact to solve the issue, they did not help me. Now honestly I no longer know what to do because now this issue keeps on coming back and I cant continue with my things, I cant get a loan, or credit anywhere because of Homechoice. they have ruined my credit health with an issue that they have failed to resolve for the past 5 years and its very tiring and draining.