Vodacom Is Abusing Me

Yesterday I received a sms that my next debit order is R884 and I already sent and and told them that the amount they charging for my insurances is above the amount the amount I called the insurance department and they said they have rectified the 1 amount to R115 but for the 2nd deceive I need submit a form and inform them why must I submit a form but you have everything on record I even received an email that the incorrect amount was rectified on the 9 Jan 2023 to R115 if both insurances was rectified the debit order is suppose to less than R884