Very bad customer service and violation of customer rights

Bought a phone at vodacom on the 24th of September asked the sales lad[y if it wasn't network locked she said no. When I got home phone cant accept other sim. Returned the phone the following day 25th of September they said I must come on the 27th they will unlock the phone. Went on the 27th the story changed they said they are booking it for inspection. They promised to call me back after 7 days but thwy never did. I have been calling to speak to sales lady and the manager and always its either they are not available or they are busy I always leave my details no one calls back. Yesterday the 11th of October I called thwy told me the lady is nolonger working there and the story I am telling them and what they see under booking is different so they will need to book it again for how long should I stay without a phone and worse part no one feom the store is giving me update but this was a cash transaction so it means they are not bothered. Logged a query on hello peter the only feedback I got from vodacom online was that my phone was booked for check up then my query was closed but I still don't have myy phone.Does one single person at vodacom care that I am a customer who paid her money and still doesn't have my goods after 3 weeks.

Dear Vodacom Customer. Your service ticket with reference number EC-17VO-2PKVWI has been closed. Thank you Vodacom.