Poor service from call center agent!

A month ago it called to ask to change derbit order dates and the consultant said that they can't. On that particular day month end I had insufficient funds on my account. Realizing that will be a problem I have been calling them to make arrangements and the consultant told me that there is nothing to worry about if I now have funds in my account. I have called several times and to my surprise they have changed derbit order dates now. On Friday the 3rd of June the internet service was disconnected. The call center only opens on Monday to Friday, so if there's a problem it has to wait for Monday. I'm not happy with the service the customer service I got from their call center this situation could have been avoided one my first call last month to change derbit order dates but the agent said that they can't.