Horrible service and lead time

I have returned a second WD My Passport external hard drive both having failed. the first having failed after a month. now with my second return I have received slow feedback if any at all. I would prefer to order another brand as the quality of WD is clearly poor but I have been told my unit will be replaced by another colour as the one I had is no longer in stock. suddenly my return says cancelled and then concluded a few days later with no update on my return and delivery? how am I supposed to work and back up this work with this poor service? very disappointed