Thank you for your inquiry.
In regards to the different spellings of the word, I will gladly assist you.
It was accurately declined for the reason of "duplication of results". An Internet user will get the same results if they search for the word with either spelling. We have a Match Driver feature that maps the different spellings to the same results.
Our Match Driver is set up to do the following:
- Matching your terms to misspellings, singular/plural combinations and other variations that might be used to search for your product or service
- Looking at your term, title and description to match your listings to searches where we believe the intent of the user is to find your product or service, even though they have not typed your exact bidded keywords
- Removing unnecessary "noise" words such as "a", "the", "of" and "for"
- Reordering words in multi-keyword search queries and directing them to a single primary form
If we can answer any other questions about this feature, please don't hesitate to contact us.
Please do not hesitate to contact us if we can be of any further assistance.
Yahoo! Search Marketing
I don't know how accurate this Match Driver is for UK-based spellings. There was another ad where I varied a word ("rationalization" & "rationalisation") where they approved both versions. The "z" vs. "s" was the only difference in the phrase.