charge2000 seemed ok. we got them to set us up but they wouldnt post the data back to us and some various other small technical problems made them unusable.
after we told them that their solution wouldnt work as is they had the gall to send us a bill for their time involved with setup.
honestly. they have a good product. they need an english speaking technically minded rep to represent them and help deal with clients... even the brief emails i had with them were almost incoherent as english is not their first language.
atmbilling?... well that particular domain/company itself.. i think it was a casualty of war over at cen... but the concept while enchanting is much like cc processing.. it's run by a few companies that control everything. recurring billing isnt possible with it, and they are very much against the idea of somebody else getting the pin number of a consumer. you'll notice that there is not a single signatureless (telephone mail order, fill out the paper form with a signature even) atm card processor... for them signatureless doesnt exist.. if the pin # is entered, the customer made the purchase.
in the end i believe that they pulse/atm network just wont let it happen