Misleading client with incorrect information

I just want to find out what's happening withy your company .I was told that the special for 299.00 router is now 399.00 which I agreed on now I can see my invoice says something different about 499.00 which I was told that it will only start being calculated the day it was activated which it was delivered on the 31st and activated on the same day. Instalatio0n was free and delivery as well according to the sales lady .Now I have to pay for something that you guys forgot to mention when you were recruiting me as you client .Is this how you treat customer .You hide things for the customer in the name of knowing how to treat clients .I want this matter to be sorted .I was also told that my account wont be debited even though I provided the banking details as I told her in the first place that I don't want any debit order on my account .I was assured that there wont be any debit orders now I being told the funds will be debited from my account .Stop promoting **** adverti*****t to clients because it will lead the company in a very big mess .I need this to be sorted asap .I need the contract to remain as promise if I wanted my contract to be 499.00 don't you think I was going to remain with the one I was using .This was a mess in the first place because I ordered the next thing was told that the order was captured incorrectly so they will have to start the new one .I kept quite and agree. Then the next thing after router was delivered then the next thing I received a call from delivery guy who wanted to deliver the router again which shows me that the first order was not cancelled as promised .Your services are so poor I regret doping business with your company. I hope those who think of doing business with your company can see how you treat and manipulate the situation to get sales