Contract Dispute

Hello Cell C Please advise on the following , so i upgraded dec 2017 on month 20 of my contract. Original contract ends 18th April 2018 , my new package which is the pinnacle unlimited kicks in the 18th April . Now Cell C sms'd me last week that the same said package is now R1299 instead of R1799. I asked the store and customer services if my contract could be adjusted to the new price considering it had not been activated yet and i was told know by both parties . Im a loyal customer with a good monthly spend , i also have LTE A at home and is in the process of installing Cell C fibre at home , So my question is are you not flexible at all with your loyal customers, where is the loyalty to your customers . How is this a good attitude for potentially new business?