Wireless security into modum

Question

Hi,
Today I spoke to a Netgear representitive on the phone about a problem with our internet and they advised me to email you for assistance.

Our problem is that we have been made aware that other people maybe accessing our internet connection as our bills have unusually spiked in the last 3months.

We heve been advised to email this address for specific advice, and in particular to obtain a passwprd for our modem. Please let us know how to proceed.

Thanks for your help

ID Number 7425118

We have netgear modum
54 Mbps Wireless ADSL modum router DG834G v3
Serial IEP 163 BFO 67 DC
MAC 00146 CA7C736

Please reply to [e-mail]

Thank you very much for your time and expertise.(sorry, unable to find modum under product description)