I believe Pretax interpreted it as the MM's filling a buy order at these levels whilst slowly walking the price up to capture whatever stock they could at the going rate.
It seems to fit, I also agree that this may be the case. I would Love to see them raise the bid to 35p to close the spread and also encourage more volume both buys and sells but I don't think the MM's will let it just yet.
There seems to be more news about to be released as in the IC article. ie: within the next month.