Bad service

I bought n brand new CAT S32 phone from Vodacom Garden Route Mall. I opened the phone the next day to find it have no sound, no ringtone and no sound on any videoclips, movies. I thought it was a setting error but took it back to the shop in George. It cost me a trip to George as for I'm living in Beaufort West. There they told me I will have the phone back before the end of the week which will be 6/7/2018. Today I received a sms what the phone is send for Advanced Repair Centre for higher level repair. Job nr ********** 8. I mean, this is a brand new phone, never been used and the just make lame promises about the phone being send back before the weekend. I was within my 7 days to cancel the policy but they wouldn't do it. I want a phone ASAP or this policy cancelled.