confusing experience

After receiving my wiko rainbow, very happy with my purchase, nice phone but after 24 h disenchantment, the screen went black, the phone can not access the content, so exchange (thank you Amazon for its responsiveness that m ' has sent another soon). Unfortunately the second phone of the same brand same therefore refund. My experience wiko remain there. Too bad because without all these problems the phone would have suited me perfectly and a big thank you to Amazon.