UPS-XML config prob. - shipping methods aren't showing up

Hi Guys,

Any help would be highly appreciated regarding my problem:
From the configured shipping options, only the air shipping ones are showing up when trying to proceed a test purchase.

The origin is Oakland, California.
The test address is Oakland, California.
Thus, the air shipping doesn't seem to be logical and economic.

I'm attaching the config details:

Enable UPS Shipping - True
(...)
Pickup Method - Customer Counter
Packaging Type - UPS Express Box
Customer Classification Code - 04
Shipping Origin - US Origin
Origin City - Oakland
Origin State/Province - CA
Origin Country - US
Origin Zip/Postal Code - 94612
Test or Production Mode - Test
Unit Weight - LBS
Unit Length - IN
Quote Type -Commercial
Handling Fee - 0
Enable Insurance - True
UPS Currency Code - USD
Tax Class - Taxable Goods
Shipping Zone - --none--
Sort order of display. - 0
Shipping Methods -

Next Day Air,
Ground,
Worldwide Express,
Worldwide Expedited,
Standard,
3 Day Select,
Next Day Air Saver,
2nd Day Air A.M.

Shipping Delay - 3

Thanks in advance...