Mark Wagenaar a customer success specialist forcing me to pay for something i did not recieve

i have been charged 2 pearlett duvet set, but i was given 1 pearlett duvet set and a 3/4 duvet set that i did not order, was not charged for but was given.there were 2 sku barcode on the 3/4 duvet set, the bottom one was the product and on top of it was the pearlett duver set sku barcode. i had to return the oder, on the return form i indicated the error they have made. to my suprice no one called to make follow up after recieving the returned order but all they did is credited only 1 pearlett duvet set and i am now expected to pay for the other 1 pearlett duvet set that i never recieved. i have been communicating with the rude and unprofessional customer care consultant day in and out with help. i was told to fill in a dispute form which i did. i send them pictures of what i recieved, ive indicated on the return sheet their error but still they expect me to pay...after all this im told to go to the police station to right an avidavit. that is not okay at all, making me run arround for the mistake and error homechoice made. on my recent email dated 19/8/2019 i am dealing with MARK WAGENAAR (Customer Success Specialist) who just told me that because i dont want to provide affidavit they will continue billing my account and im expected to make payment for something i did not receive,what kind of customer success specialist say all that without even bothering to go and ask the person who recieved my returned parcell what they did to the 3/4 duvet set that was given to me with no charge,n yet im expected to pay for 1 pearlett duvet set i never recieved, regardless all the evidence pictures i have attached on the email.i have asked them to fix this issue several times now because i have an oustanding order for 3 comforters hanging, but after this i asked them to cancel everything and give me a settlement letter for the 1 set tara blanket i recieved, i want them to remove me from their data base and stop offering me anything.it is not worth it beeing a customer at homechoice.and im told il still be billed for something i did not recieve. i am taking up this matter with my attorney, homechoice is used to bullying and abusing customers. you charge me 2 pearlett duvet set and give me 1 and a 3/4 duvet set that is not a pearlett and even after returning indicating to you the error made you want me to still pay for the missing 1 pearlett that i did not recieve. this is so wrong of you