That shows you have $10 in your flex bucket since your not on a roaming plan, you will not get a roaming prl if you put money in your flex bucket. Flex bucket is good if you have a roaming plan and want to add more roaming minutes. What You should have done was add roaming feature on the account which would have gave you a roaming prl when you *228. The only thing you can do now to be able to roam is have roaming feature added to your account and you will have to put a roaming prl yourself on the phone because *228 will not work outside your KC market.
You could try to add a roaming prl and see first before you add the roaming feature. You gotta have the latest roaming prl.