What web browser are you using? I'm running IE7, and I do not see it, but I have seen the same issue when running IE 6, and some versions of Firefox. All of these browsers handle formatting slightly different than one another.

I have edited the ad to remove the extra formatting code (it is there). See if you still can see the merged text.

On a side note; your friend may want to consider how they have their ad priced. Paypal does not permit sellers to charge fees to buyers when using their service. RCUniverse is not affiliated with Paypal, and is not here to enforce their rules, but if someone were to file a complaint with Paypal, they may suspend his account.