Is it possible to pay for a membership via personal check, bank or postal money order?
Is this acceptable?

TER used to have an option called TrustCash that allowed you to go to a bank and make a cash deposit into their account. That is no longer an option, hasn't been for some time. I was told on multiple occasions that TER was working on other options that would allow one to pay with something other than a credit card registered in their name. That has not happened.
   Personally, I don't understand what the great difficulty is. But that is their stance for now.
              Regards......RR

Click on Buy VIP, click on the option in the drop down menu that you want to buy, and you will see the options you can pay by.  Personal check, money order, etc., is not given as an option.  There are 2 other ways to get free VIP days, submitting problem reports that are approved gets 2 days, and reviews get 15.