I returned a toner cartridge 2 years ago for credit but on subsequent orders always was billed for the full bill. They never send a statement and it is d#$% near impossible to get to a representative that can access transaction history to verify you have a credit. They just keep sending past due invoices. I spent 1 1/2 hrs on the phone with them 4 monthes ago and they agreed I had a credit and that they would wipe off one invoice due and then take the remaining credit off the next time I bought something. But low and behold the next time I... read full review »