Frustrated's dashboard

I have an Dell E1505 laptop computer on which I purchased an extended warranty. Recently the amber battery light has begun blinking. I was informed by a Dell customer resolution representative that the battery needs to be replaced and it is not included in the extended warranty. Neither the representative (nor the two representatives I spoke to before this issue was sent to the escalation department) could show me where the extended warranty excludes batteries. He read a battery warranty paragraph that states that the battery has a 1 year limited warranty and stated that this implies exclusion from the extended warranty. Since all Dell hardware has only a 1 year warranty and is subsequently covered by the extended warranty, why would the customer reasonably be expected to assume that the battery would not be covered by the extended warranty given that there is no express exclusion clause in the extended warranty. The representative could (or would) not give me the phone number for his supervisor and told me that my only recourse was to contact the Dell Legal Department however he could give me no phone number for the legal department either. Is this an example of Dell's deteriorating customer service?