BAD SERVICE

I have been battling to get answers from their customer care and enquiring about my account .I have send my first email on the 29 of May and i have followed up still no feedback ,1. I requested a statement for my account as my balance did not make sense but still no luck . I requested explanation on below : 26 March i paid R780 and latest balance on the till slip current balance R4641 29 April I paid R400 and latest balance on the till slip current balance is RR4764.46 29 May i paid R607 and latest balance on the slip current balance is R4513,26

Maybe my maths is playing tricks with me how come current balance in April increased R123.46 and after paying R607 in May and my balance decrease by R251.20 I provided them with my card number as well but no one is willing to assist CARD no :*** Their service is shocking .This email address its just waste of time no one respond:*** and you send email to this department still no joy your email will be send to the same email above :***

And please dont call me i need everything on email .