In July 2012, I made numerous map change requests to Navteq (your map data provider). Simply has prove the adage that you can lead a horse to water, but you can't make it drink. Navteq was unresponsive for months, then when I filed a BBB complaint they promised to change the map (in a few months). When I followed up further, more promises, and then they said it was fixed. It's not fixed and now they contradict themselves and are refusing to fix what they promised before would be fixed.

My specific issue is the border between Waltham, Massachusetts and Newton, Massachusetts. The border line Navteq drew is sloppy and wrong. It zig-zags back and forth where the actual border line is smooth and straight. Compare:

Wrong:
http://maps.yahoo.com/place/?lat=42.36316973445219&lon=-71.22910737991333&q=10%20Arbor%20Rd.%2C%20Waltham%2C%20ma&bb=42.36486816016738%2C-71.23328626155853%2C42.361471308737%2C-71.22492849826813&addr=10%20Arbor%20Rd%2C%20Waltham%2C%20MA%2002453

Correct:
http://www.openstreetmap.org/?lat=42.36198&lon=-71.22949&zoom=17&layers=M

There really is no excuse for this. That second link is even has an Open Data Commons License. This is completely ridiculous.

if you could add located inside oakwood mall it would be more accurate. address is correct considering you show us next to highway outside of mall which is not correct . we our about 1000 feet straight south from where you have us marked on map. if you notice the big circle of land south of present marker that's OAKWOOD MALL and we our inside. mall owns all the land from inside to highway. unfortunately all retailer have same address.4125 W. OWEN K. GARRIOTT enid,okla. 73703 our box number is 69. not suite which it use to be until postmaster changed it. please move marker farther south and add located inside oakwood mall. thank you.