SIGMA GROUP CAPE TOWN SHOCKING CALL CENTRE AND STAFF

Each time this company calls you they charge R19.50 and sms are charged R2.50 and they add this to your outstanding balance. Yesterday 28 March I recerived a call from a very rude lady who refused to give me her name yet continued to ask for my date of birth (which i did not give as I did not know where she was calling from) Today I advised them re a payment I had made via email. Yet they continue to call and bill me R19.50 a call - this is ludicrous and shocking.I have been communicating with Abongile Sayo Account Manager via email yet they call me every 20 to 30 mins. This is not the way to treat people. Should you need to call - kindly do it after working hours,, where this does not interefere with production.