Warning - Cox changes prices with no prior notice

Our price jumped almost 10% this month.  I called and they spit out the standard answers without even looking at the account - none of which were true (things like your contract stated this - implying that an intro price had expired, not true at all, etc. etc.).  Finally they pulled up the contract and confirmed nothing had changed in the contract.  They just raised prices.  I said legally they have to send out a notification, they said they did (they didn't). When pushed where this notification was, they claimed it was on the last bill. I said I was looking at the last bill and it was not there.  They then said it was in an insert with the last bill.  I said I am on paperless billing. They then claimed it was a separate email.  We keep all documentation (we show traceability for our products and we do the same process for all venders).  There was no email sent from them.  There is no message center on their web page like other companies have that show non bill messages. 

I asked for management to be notified no notification was sent and by the response I do not believe they were going to address this problem.  Oh, they had upped the plans, calling the names the same, so were pushing us to a higher thruput which we didn't need.  And we had to pay for the month we were on the higher plan as "it could only be lowered starting the day I called in". 

We have several internet accounts with different companies and I have to say Cox is one of the most poorly run one and is the reason we use other companies for much of our services.