Two accounts in one month 4 days apart R650

Hi good day <br> <br> I have just received another statement, so I was billed twice in one month, 4 days apart and R654.36 later.<br> <br> How is this possible.<br> <br> Please view attached my three statements since December 2015. <br> <br> Still no response to my email below either.<br> <br> Please provide urgent feedback on the matter.<br> <br> Regards <br> Nikki <br> <br> Hi good day <br> <br> Account ***, this account belongs to my mother Kathleen Smith ID: ***.<br> <br> I received a Statement dated 18 December 2015 for an amount of R446.00 due on 8 January 2016. <br> I now received another statement dated 14 January 2016 with an amount of R1171.00 with a Previous balance of R1994.25, but I do not have a statement with that amount on at all.<br> <br> There is allot of charges that has been reversed and credited ETC, but there is no previous balance of R1994.25. <br> <br> Please can you advice why the balance differs with so much over R1500.00 and there is no statement for this either.<br> <br> Please explain all the charges and reversals on the account as well.<br> <br> Our bill is normally R400 - R500 per month and now suddenly it has gone to R670.00 <br> <br> Please can this be looked at as the previous balance account is incorrect.<br> <br> Your urgent