UNSATISFIED CUSTOMER

My J5 Samsung cell phone started disconnecting from wi-fi & bluetooth early in OCT 2018. I returned it to Vodacom, Vincent park East London and from about Nov 03 2018 the phone went back and forth more than 15 x.... I get the phone back and they tell me all is working and when i get home and try to connect to the wi-fi it sometimes shows that the wi-fi is available but will not connect........this happens everytime... i phoned the major repair centre in JHB and they told me to take it to the local store and request the phone to be sent to a major repair center,,,this happened twice and both times the phone comes back with exactly the same problems! this is my work phone so i need it to work as it is still under guarantee... My hands are tied as this problem is going forward and backwards but my phone is still faulty...i have driven lots of kilometers to take and fetch the phone almost every 2nd day hoping it would be repaired!! JOB NUMBER: ********** 8- ********** 0 HANDSET: ********** ********** 3 thanks Deon ********** 617