Not good to existing account holder customers

I am just bored that they don't see the need to work with their existing customers. My payment was behind last month and their consultant called me, I told her I will manage 1000 month end. Came month end, I checked my online mini statement and it said 1190 due and I paid 1200. So now I am receiving sms that they charge me telling me I am short of 65. My concern is that this is after I honored the arrangement to pay 1000 month end which I paid more than the arrangement. I call them to find out if they will stop sending me the many sms and calls that they come back and charge me for shows me that they are not willing to work with me. I have been a customer for a long time and I now see that should life happen on a serious note, they will not work with me but instead they will help me sink more. How can you add charges to someone you see that is already struggling but trying to honor the payment. It's ridiculous. I called their consultant and asked what is the use of making the arrangement if you will continue to sms me and charge me and increase my balance ? She says unfortunately they do, so you immediately operate like debt collectors? 😒