Cellphone fail

Worst purchase I could have made. Bought the DOOGEE S88 Pro and experienced nothing but endless frustration and irritation. Unstable, unreliable and overall just a bad purchase. Downloading apps scrambles the phone's own built-in features causing all kinds of unwanted issues. Dual sim cannot operate simultaneously. Phone constantly on it's own mission automatically making unwanted calls, sending messages and voice notes. Going to stand-by and aeroplane mode, setting changes without being activated, multiple phone functions that doesn't work. Back to the drawing board fellas! Try again. This phone is not worth the cardboard box it's packaged in.