Worst customer service

The customer service is terrible. I requested a line downgrade from 100 to 50 Mbs after I had paid for the fully 100 line for December. I assumed it would be processed for January, given that December had been paid for already.

Since the line was downgraded on the first of December, I assumed that I would get credited, since I paid more than the service rendered to me. I received the new invoice with no credit whatsoever, and now my line has been suspended.

I called the account department, and they said that I should speak to someone from sales, and they will tell them if I should be credited or not. What kind of company is this? So no one communicates with each other within the company departments?

Weren’t you supposed to update the status of my account as soon as I downgraded to avoid such from happening?

I still have to go from pillar to post and have my call answered by an answering machine because no agent is available to take my call?