I purchased the Mu-Star digital…
I purchased the Mu-Star digital piano,was delivered today,assembled the stand,turned the piano on,and sadly not all keys work when pressing. In fact,3 of the keys do not work at all(D#,F,F# all in 5th octave). So what do I do now?I would only want to return the keyboard itself and get a replacement.It has 1-year guarantee. Is it even possible?Can you please advise?