Very Bad Service

<p>I bought a Samsung Z2 phone on the 25/01/17....on the 26/01/17 the phone stopped responding. I called the store and the Assistant manager said I should bring it and get an exchange or an upgrade. Today(27/01/17) when I went to take it back, the very same assistant managet tells me that they no longer do exchanges or upgrades.... when I asked about the policy that was written on the slip which states that: exchanges on cellphones can be made if it returned within 7days and still in good condition, her response was that it no longer exists... I told her that I no longer want that phone, that I wanted qn upgrade and she told me to take it home with and bring it back when it starts giving me problems again.... My rights as a customer were violated, she then said she will take it for repairs and told me to come after 6weeks... but the slip states that it can be exchanged within 7days!</p> <p> </p> <p>Does this mean that we are being **** to?</p>