True customer service has communication problem

On June 23 I received my bill for June and noted the cost had increased by 7 per cent. Yesterday I went to the True shop in Pattaya to query the increase and was told it was due to VAT being added. Why has it never been applied previously? The shop suggested I call Customer Service for further explanation and to ask why I had not been previously notified of the increase, either in writing or even by a phone message. I regularly pay the monthly bill on the 26th of each month. However as I first wanted an explanation of the increase, this time I did not pay on June 26th. This morning my service was disconnected. I called Customer Service and the automated message recognised my phone number and said the service was disconnected due to non-payment of the bill. It would be reconnected after payment was made plus a reconnection charge would be added. Trying to talk to a real person at the Customer Service phone number is like calling someone on the moon!
I have three suggestions for True Corp: 
1. If the service cost is to be increased for whatever reason, issue an individual notice to subscribers in adequate time to allow them to decide if they want to pay extra or cancel the service.  
2. If the service is about to be disconnected due to late payment, call the subscriber to let them know. 
3. Read either of the English-language newspapers to get a better understanding of what people think of True’s service and programme quality.
Chris Kaye
Chon Buri