The key to using the 150 is not to accept the offer until you're ready to use them, or to have a heap of listings ready in scheduled or unsold that you can relist straight away as soon as you accept the offer (before anything else has a chance to relist and come off the 150).

Yes, it should be fixed, but until it is it's better to plan to work around the problem of relists coming off the 150 than to have to waste time ringing ebay.

If enough people annoy ebay about it they may just withdraw the offer.  Just saying...