Well, you could ask them and hope they are honest? I think it mostly boils down to common sense if you like the service, know the value you are getting it to what you are paying, price is competitive, then it is a personal preference to stay or go? I know PP is competitive, they provide reliable service, great tech support, so I'm going to stay put. A 10-20.00 increase is not worth the time, aggravation, hassle, to try the next flavor of the week. There are people paying 24.95 to VoicePulse which is more then alot of providers here. At the end of day it is what you are happy with and willing to pay.
With any budget VoIp company like PP it is well known they are not making a killing off their customers. So it is safe to say they are not doing it to make revenue or "screw the customers". I'm sorry that Uncle Sam wants two extra McChickens this year, might I suggest we all write him