Bad service

I pre-ordered the Samsung galaxy s6 and confirmed the order on the 7th April. Two days later i get my package. Well done..So far. After I do the sim swop I check the package and see their the free cover advertised all over the website is not in the box. On a sticker on the packaging is a note saying I must redeem the cover at the store I bought the phone. Well I didnt buy it at a store. A call to the upgrades department and the agent checks with her TM and says oh we going to log a dispute and send u a new phone next week but u can use the phone in the meantime. Well I will use the the phone but whatvl if I scratch it or the protruding lens gets damaged. What then?? Will I still get a new device with my cover? Not acceptable I dont just want an apology and a new phone next week. I want this sorted ASAP<br>