Refuse to update bank information to add unnecessary penalties

Informed Telkom that I had to do a bank change due to ***** on the account because if they cant debit your account you get penalized with R202. I have had bank changes done before as I had contracts since 2017 with them, NEVER EVER was I told the s**** I was told today. I must now accept the penalties for the next 3 months because they can't update my bank information!!!!! So Telkom is basically just taking R606 from me without ANY reason actually except they don't want to update my bank information!!!! This is daylight *****ing!!!