Poor service, product doesn't work

Have just bought Q90 soundbar - it is impossible to get subwoofer and surround speakers to connect to soundbar. Seems to be a massive problem experienced by many other users. We have spent hours following instructions on the Samsung site and other webites on how to resolve this, but to no avail. The support line were not interested in helping us - So basically we have bought a very expensive item that does not work. Surely you would expect a brand new product to work, and at least to receive some support