Takelot Returns System is flawed!

Takelot has the very unetical practice of sending wrong items, and then when a return is logged, they just reply with the phrase "item out of stock, your account will be credited". The item clearly on the app shows there is stock available, but Takelot expects me to pay delivery fee, again, for their mistake. My son of 8 has saved up for a mini phone for a long time. We convinced him to rather buy it on Takelot, because the quality might be much better than the one at the Chinese store in town. This would mean that instead of buying the same day, he would have to wait a few days for the order. It has been two weeks now and I had to send it back because takelot sent a grey one instead of the blue one. And now it is expected that we reorder and pay R90 delivery fee, all this because someone at Takelot did not do their job! It clearly shows on the app that the item is available in the colour we ordered. Since this month it is also near impossible to communicate with Takelot directly. They do not have a direct telephone line and emails do not get answered. Instead they direct you to their "help" website, which is just full of 'frequently asked questions' options. Next time I would think twice before ordering from them again. This is the third time takelot has done this to me.