Do as you please ... AGAIN

Wednesday 17 January I received a call from your Price Lock Team. Gentleman I spoke to, Unfortunately I don't recall his name did assist me with my request to lock my price again after I did request same probably 3 or 4 weeks before ... All done and this Gentleman advised me as my Account in Credit there will only be a debit due of around R580+_ this month 20 January. Also my due amount as from 20 February 2018 will be around R908 +- per month. As I did request only a price lock again (No need for new Explora etc) I was very happy and also with the type of service I received. I should have known this was to be good to be true as the 20th of January you still just debited R963.50 from my account ... That now after I was assured I am in credit and only due amount is around R580+- ... I need you guys to go and listen to the call, call made from number + ********** 0203. Call was made around 12h17. I demand EFT Refund to be done immediately for the overcharged amount and also in writing to be confirmed my next premium with apology and all. Not the 1st time you overcharged me and probably wont be the last. If you want me to stop my debit order please advise as I will rather do EFT Payments beofre you do as you please again from MY ACCOUNT .... Also note when this price lock done 2 Years ago I had to pay R150 once off with 1st payment and I even confirmed couple of weeks back this R150 to be taken off my normal debit but yes you still do as you please. Sort out todaym, I have had enough already