Tedious returns

I had to return a Mecer tablet I bought with Takealot on the 27th (Friday) as it keeps dropping the wifi signal, the charger cable doesnt work and the touch screen is not intuitive ( I bought 2 and the one works brilliantly). The lady at the drop off point told me it would get to the Warehouse by Sunday, Monday latest. I phoned your Call Centre today only to be told it will only arrive at the Warehouse in 3 working days, then they'll analyse ect and then make a decision and then IF you decide its faulty, then only you'll replace it. In the mean time, only one of my children have a tablet (which I have to hide) until Takealot can decide if they'll replace the broken item sold to me in the first place. In the mean time I have to be patient. Exactly the reason I don't like purchasing anything online, your return process is seriously lacking and very time consuming and I am left with 2 very unhappy children who cannot use their christmas present!!!