I'm very curious to how that went?

So here's my question:
I just need a US-sim to receive SMS messages in Europe, this due to BofA forcing me to approve every transfer within or to bank accounts/ credit card payments. Have looked into a simple T-mobile plan, however they charge me an extra $0.10 to RECEIVE a textmessage outside of the US. That was not going to fly. Not looking into having a expensive subscription that I don't use at all, nor getting into trouble for having to pay a certain amount for just receiving a textmessage/SMS. With my European SIM, receiving anything is free, however BofA is forcing me to get a US-number.
Have read about the $3/month plan that effectively just keeps your mobile number active, which looks fine to me. Above here, I finally found such a plan that can still be purchased through UltimateMobile Paygo. Can't find anything regarding the costs of receiving a SMS, so I guess that would be free?
The Verizon Page Plus plan charges $0.20 for every message either sent or received internationally, so that one doesn't fly either.

Anyway, it is stated that you can only get the Unlimited Paygo cards at "PayGo plans can be purchased at T-Mobile Brand retail stores or T-Mobile Preferred retail stores.", so does this mean I can get this at ANY T-Mobile store?
Or are there only a select few who actually sell this. Will be traveling to Las Vegas, NV in January, if they sell it at any T-Mobile store, I'll pick up a card there.