Refund not processed....what a horrible experience!!!!!!!

I bought a laptop on the 23 Nov 2018 and realised a week later that it was faulty as I couldn't log in and the keyboard was continuously freezing. I then logged a replacement request thereafter I was told that a replqcement will be sent to me in a few days time. I then asked what did they detect on the initial laptop and whether they can assure me if the new one won't give me the same issues but to no avail. I then asked for a refund instead and this was before they even sent me a new one and they indicated that they will process a refund and will no longer send a replacement. It has now been more than two weeks and I've been begging for my refund but to no luck. Instead they credited the takealot account so that I can repurchase from them and this is not what I want. I want my money......they are really taking me for a ride and I'm highly dissapointed as I do not understand why they can't provide me with my refund. I even sent my banking details for them to deposit the money but they said to me they can't do that......this an unfair business practice and so inconsiderate of consumer needs. I'mean warning other consumer's out the to think twice before buying anything from takealot because the afrer service experience is pathetic............my issue is still not resolved and I was intending to eacalate this to the CEO as I think that he may resolve this matter as no one seems to be able to assist me.........I've heard enough...