Rain - Worst Customer Service Ever!!!

I have been a loyal customer to Rain. I have been unable to change my payment date from the 25th to the 1st and now when I try to escalate this to the billing department, ai am told that my query is not valid because I haven't made a payment as per their customer service and as such they cannot escalate my query nor even try to assist until I make a payment. Considering that I have been a loyal, paying customer. The type of treatment and service I just received is appalling. To even go as far as telling a customer that they will not be assisted because they are not valid due to non payment??? I do not get paid on the 25th, I get paid on the 1st. The edit button to change payment dates has been greyed out since November, even after payment was made. It is deeply insulting after spending so much money on this service provider to be told that I am not valid until I pay. So Rain wants to see my money first before I am made relevant to them? This is a very deep insult. I recorded the call with the consultant. I asked to speak to her supervisor due to her lack of assistance, she still refused and said she cannot do that. Rain has started my year on a very bad note and I will not take it lying down. And now, since I work from home, I will not be able to work until I make payment?? Even though their website did not allow for any editing for payment options?