Is it me or should that not be free?

just bought a wireless router for laptop, ps3 etc….i do a lot of banking online from home. should i do it with the wireless router? making me a little uneasy..
the security option that is in affect is WPA-PSK(TKIP) + WPA2-PSK(AES) is this good?

Lets say that I used my Visa credit card to purchase something online. Does the bank phone me about my purchase or mails a receipt? Or they call or something else?

I’ve never ordered anything online before.

I’m supplying the right details but the site always says ‘error’
anyone else hav this problem and what should I do?
Thanks
It always says this:
We are sorry but we cannot continue with your request. Please try once again ensuring that you enter the required details correctly. Please select “OK” to try again. If this does not work, please call us for help on 0845 600 2290 quoting error reference HK1.