IRS Electronic Payment Pains

I’ve gotten so much mail from EFTPS (Electronic Federal Tax Payment System — it must be an unwritten rule that everything government-named must be abbreviated — I worked in the federal government once upon a time), the IRS‘ (Internal Revenue Service) online payment service. Part of it is my fault and part of it is a usability problem.
Just now, I was trying to confirm the URL of the Web site and had the letters next to the keyboard. Either my vision has drastically changed in the few weeks since my last vision check up or the IRS has forgotten to add that bit of info to its letters.
The thick envelope also came with brochures and I’m guess Web address is there, but I already had copies and threw them away. Shouldn’t it be on the letterhead somewhere? The phone number shows up plenty.
When I first signed up for EFTPS, I used a different bank account than the one I need to use now. Following instructions on the Web site, I attempted to change the bank account number. The action prompted the system to send me a packet of information. I checked the site again later to see if it took the new bank account (as it said it would), no change.

So I tried again. Stupid move. This prompted ANOTHER packet of information to go in the mail to me. Waste of paper and resources. I also got a new PIN (personal identification number) and that means I have to call the IRS’ recorded system to get the Internet password to be able to access the account.
My old PIN and info still works. So it’s as if I signed up for another account. I don’t want to call the IRS through the relay service as they’ll ask for personal information that I prefer not to share with the third party service. Sure, I could have Paul call, but for these types of calls — they always ask if they’re speaking to the person and we don’t like to lie. We explain my deafness to them and they still give us a hard time (them and every credit card company).
I finally got the temporary password, signed back on with all the new info and my profile finally reflects the right bank account. However, to confirm this, I had to go to “Edit Financial Institution” and go through a few screens before seeing the number.
IRS is ahead of most government agencies with regard to online offerings, but its usability needs work. I don’t like the idea of having three accounts at EFTPS. Why did switching my bank account earn me a second login? The third login was from my attempting the whole thing twice.