I would get in contact with the low pay commission. I don't mean that in a be ranty about it and they'll sort it out kind of way, I just think they would be interested to hear from you. They do a lot of work in this exact area and this is quite a devious and more unusual example.
I wouldn't be able to offer an opinion as to whether it is worth you taking it on or not, I don't know your motives. I would generally be suspicious about a 6 month offering that has 3 months unpaid training and no promises whatsoever. I think that they've probably offered this offer to several people and seeing which one of you is best. One person will end up getting more hours than the rest of you (that I suspect will be low in anycase). I sympathise with how bad things are jobwise right now. A lot of jobs out there are very low hours, you're basically talking about taking a hit to do something. Be aware that you're allowed to do upto 15hrs a week whilst claiming jobseeker's allowance, but be very careful on that one. Very, very careful.
I wouldn't be able to offer an opinion as to whether it is worth you taking it on or not, I don't know your motives. I would generally be suspicious about a 6 month offering that has 3 months unpaid training and no promises whatsoever. I think that they've probably offered this offer to several people and seeing which one of you is best. One person will end up getting more hours than the rest of you (that I suspect will be low in anycase). I sympathise with how bad things are jobwise right now. A lot of jobs out there are very low hours, you're basically talking about taking a hit to do something. Be aware that you're allowed to do upto 15hrs a week whilst claiming jobseeker's allowance, but be very careful on that one. Very, very careful.