First: Props on being a vegan who understands the importance of B12. Too many of your brothers and sisters seem to think they can argue their way out of a necessary nutrient.
That's not a side note: that's part of the problem. Whatever your source of B12, make sure that it is from a proven source. Some vegen/vegetarian apologists have been selling products from plant sources containing B12 analogues. Simple tests seem to indicate B12 in their product, so they sell it. More careful analysis finds that pseudo B12, of no use to your body, was giving a false positive.
Long story short, B12 comes from animal sourced foods and supplements.
Bee pollen is a bit dicey. For starters, it's going to vary a lot from one source to another. Given the vegans I know, I'd bet my eye teeth you'd be going with pollen from a single, raw source. I understand why, but this increases the variation problem. Larger, commercial producers would likely produce a more homogeneous pollen.
I've not found any reliable sources for nutritionals on B12. Honey seems to be a minor source (FW IW). If nothing else, you could try it, with regular blood tests to check your actual B12 level. Remember that B12 deficiency does not develop overnight, nor can you really reverse it overnight. The safest course of action would include a B12 supplement or a fortified food source.