Unstable Telkom bill

I have contract with Telkom which I happened to dispute the November and December bill in order for me to pay my mom's medical bill. January as arranged with Telkom the took the remaining balance of R1104. 27 which is arrears as well as current balance. To my surprise in Feb Telkom again too amount of R518. 58 as debit from my account and our initial contract is R299. 00. I was shocked as to why extra R218. 58 was taken as I no longer owe arrears. I have currently received my statement which states amount due for March is R825. 83 however my account has debited for a month of January and February. I have been trying to call customer service on 10210 and 081180 through this past week in order to get more clarity but I keep rooted back to whatsapp service which does not help as it does not explain as to why my account has increased and I cannot directly talk to someone on what'sapp as it is system automated response. I have my bank statement that can show all the payments done since January when I started to have arrears. My contact details are *** or ***.