BILLING *******

Cellc may have great packages and benefits, but their account SUCKS BIG TIME. I have had contracts with them for many years and on 3 May 2019 I entered into a new contract with them. At the end of May I was billed for the full month on the old package which was undestandable as the billing had already been done when I upgraded. Then I get my June account and lo and behold I am billed pro-rate from 3 May to 31 May for the new package BUT NO PRO-RATA CREDIT for the previous month's billing. This after I specifically asked the agent with whom I upgraded if there was going to be any pro-rata billing and was specifically told NO. I feel I have been double billed and that is not on!!! According to the call centre supervisor that I queried this with they DO NOT GET CREDITS and he will escalate a query for nexth month's billing. In the meantime I am expected to pay this incorrect bill. THIS IS TOTALLY UNACCEPTABLE and I am not prepared to accept it. I feel that this is a TOTAL RIPOFF of their clients as 1. It is not explained that there will be double billing of the month in which you upgrade. 2. In any other contract one would be billed pro-rata for the duration of the old contract and then pro-rata for the period on the new contract.