more details please.
Don't know if you asks me, but if yes I'll not uncover whole store since I gave him yet some time to fix it, however:
* don't send first
* don't accept his ripple IOUs untill you know 100% what you're doing
Personally I'm done with direct trading, from now only via established exchanges (dgex.com primarily since Graviton has my complete trust - it's no advertisement just my experience)