Paid money into Home Choice account. They refuse to give it back, instead set their consultants on me to pay more money. They made me a bad payer, and succeeded.

I was their customer since 2011 ,late in the year ,until early this year after refusing to refund me. They have this side company called Finchoice/ Phone choice which sold me a tablet for which I was paying R 177 a month. I asked the caller if I can settle the account should I get some money and she told me I should call them before I settle the account. I called them in January ,asked them to furnish me with their account number several times, but in vain. I then thought , because its Home choice company as I normally get correspondence from them through HC, I can as much deposit their money into HC account. I asked for the settlement amount ,again also the account number. Got the amount as R1600. HC send me an SMS to acknowledge receipt of R1600. I faxed the slip indicating the money is for the tablet. Themiey was deposited on 22 Jan. 2017 . I told callers that the money is with HC, One of them told me I still owe R 180,I played R600, indicating on a fax that R180 is for the tablet. The total settlement amount I payed is R 1760 . a bigger battle started. HC did not and does not want to transfer the money for the tablet to the relavent account. I started getting several calks from Fonechoice my referring them to HC did not work. They handed me to consultants to whim I paid not less than R3000. I tried to speak to HC social media, they asked me to send me them receipts, and then treated me Luke a lunatic. Ever since I became their customer, I was nothing but a good payer,until they set Fonechoice in me .What amazes me is that,after depositing my money ,which they treat as a present, they dumped me. No catalogue anymore ,and annoying calls from them. As a pensioner, how do I fight a big company like them, how do they explain my money when they close their books ,and lastly,how do they classify me as a was customer! Bad payer ? Why don't they want me to be their customer anymore after giving me a raw deal! R1760 is too much for a pensioner to dish out! I definitely need it, especially after paying their consultants.