ABBOTT DIABETIC CARE "SENSOR"

I bought the Freestyle Libre sensor to assist me with the readings of my sugar, the sensor fell off after 6 days I paid R 1 087.00 for the sensor. I went to the pharmacy to collect a new sensor (Medipost Pharmacy in Gezina) the lady informed me that she is unable to assist as the company must sent a rep to replace the sensor. I was already upset because my other machine I test my sugar with is broken so I was relying on this sensor to test my sugar. I called the Abbott diabetic care at 0800222688, they are unhelpful I informed them of the urgent need I have for the sensor they informed me that I must wait 7 days for them to replace the sensor, WHY??? you did not wait 7 days to take my money and your customer care agents are rude and unhelpful, I am very unhappy, and to say this was my very first time buying this sensor....