Price lists not integrated from Inventory to Commerce unless top tier?

Price lists not integrated from Inventory to Commerce unless top tier?

I am today very angry/ flummoxed  to discover that  price lists are not integrated from inventory through to  commerce unless you are on top tier?

After using a trial version of commerce  to set up  a B2B portal for a few weeks where 'price lists' were available (I assumed as standard feature and didn't even question it as I have them set up on inventory and they seemed to have come thought to commerce on the trial)  and spending absolutely ages setting ups my B2B portal and taking it live on the starter plan, that actually price levels have been disabled without me knowing, because they are not available in the starter plan?  Or indeed the next tier up-  the professional plan. But when I signed up to the starter plan and looked  at the comparison I did not even think about price levels.  Yet supposedly they are  one of the few key defining features of the advance plan which is really too pricey unless you are a large business! the starter plan was in all ways  sufficient for my small business with a B2B portal. 
So I have been gaily using commerce on my B2b portal, assuming that all my customers who were on different price levels in inventory were seeing the same prices in Commerce. But no, today I discover that was disabled when I signed up to the plan I am on, and so they have all be seeing the wrong prices even though I had carefully tested it on the trial.

It seems pretty ridiculous that you have price levels set up on inventory but that does not integrate naturally to Zoho's own commerce integration unless you pay top dollar for it?  I would argue that if it is present on a trial, and not explicitly highlighted as a special feature, that you would think it would still be available when you signed up properly?  

And if it  it is not available,  we ask that it could be a single stand alone feature that you could add to your starter plan level? 
otherwise I think this is a poor integration