As snb said, your data on RealSample is very inconsistent.
Many of the address values have an extra space in random areas, usually between the street name and suffix (Rd, St etc)
This will make finding matches near to impossible.

Also, you have 14 columns for list price, but your data leaves no indication which column it should go in?
How do we know if its listprice 1 or listprice 14?

and what does the last 3 digits of the account number signify?
they don't seem to correspond to the price list