Do not care to inconvenience customers

Purchased a laptop on promotion, was giving me problems was assisted by the agent of the laptop on store couple times. As time passed was told to come into store to book it in to go to agents. This was an inconvenience as Makro is distance from me. Nevertheless I booked it in. Its more than a month and still has not been returned. Not told what is wrong with it. I was only told I will be given credit for the unit. This is not fair as I paid the promotional price and now I have to pay the normal price which is a big difference. This is not my fault, why do I have to lose out on a deal. Makro does not go the extra mile for customers. They have promotions that are grey products but when you have a problem you lose out. A catch that they have. When I told the manager that I will go on social media he was fine with it. Makro does not care about customers rather robust.