Telkom bad customer service

Telkom incompant and unhelpful staff instore changed my debit order after I requested but not giving me the correct information as to the process of changing a debit order date. Now I have been billed for a bounced Debit order due to staff not informing me of the process. In almost 2 weeks the query has not been resolved. Spoke to a rude call centre agent raising her voice at me when I am trying to understand what she means by I will be credited. I told her my debit order is going off in two days that's why I made sure I logg my query and now she tells me about a credit to which I told her the credit will only be effective on the following months invoice clearly not this month and that really does not help me this month on the 5th. I left Vodacom due to rude and unhelpful agents and I really thought Telkom would be better but it's not they all the same. I am so disappointed and frustrated at service in this county. We are all struggling financially with this pandemic and then Telkom still wants to rob customers for a mistake on their part!!!