Hifi Corp is a big Dissapointment

I app**** for credit and got credit for X Amount I went to the branch and was interested in buying a PS4 and a Soundbar I chose a PS4 which was the last one in stock and I chose a Sony Soundbar which was priced around R3899. Went through the whole process and received my items and 2 weeks later I saw the same Soundbar selling for R1899. So I havent even paid my first installment and the price of the Soundbar suddenly dropped by R2000. So now I am sitting with a R1899 soundbar that I am going to pay off which is going to cost me R2000 more than what its worth PLUS the ****load of interest that gets added to the account. I am being ****** here clearly. This is ridiculous. I dont mind paying my account but hell, this is not right. At the end of the day hifi corp will make over R4000 extra on a item that only costs R1899. I doubt anything can be done about this and my account adjusted but I would like everyone to know about this and I am sure I am not the only one this has happened to. If this is the way Hifi corp conducts business then I will surely not support them again after I have paid off my account. Then they keep on calling me on my work number for whatever reason and they have MY Personal number. My work number is for work. It does not belong to me and I am not the contract holder so DO NOT call me on my work number. I did tell this to the lady I spoke to and what do you know. Later the same day I was called on my work phone again. I am dissapointed with Hifi corp and I was a customer a few years ago with an account which I paid in full and this is the service I get...Looks like all places are becoming ****** just to make extra money.