sounds like my first mobile phoneprovider. If you went sbove a certain limit it would be like 10x the normal cost, but no way knowing ahead of time if you went over the limit or not (before there were standard messages about how much you still had left)
To be fair, I've just looked at the instructions and they say 'All the words start with the prefix "over". Based on the definition, guess the word.' which does suggest that each answer is only 1 word so some of mine are not valid answers
Get OVER it!!