As far as I'm converned, if you want to say "has your parcel arrived?" we say ”你的包裹到了吗?”cause "parcel problem", although we can still understand it we don't usually say it in this way.
But based on the sentence you made, I'd suggest you can say ”请问你的包裹问题解决了吗?如有需要,可以随时找我帮忙”
Hope it helps.