Francisco credit union sitting on most of those medallion loans. We partner with the city on many different avenues. This is when we felt that they left us in the bag and that is the reason for the lawsuit. Reporter what is new now . How about around a dozen letters that have drivers even more worried than they were before . Im not sleeping. A whole week. Reporter nervous and not sleeping, tmb is one of the taxi drivers that just received a letter demanding full payment on the balloon loan issued for his medallion. The total amount demanded in the letter . 172,000. You cant pay that. Reporter i imagine any other driver that has one of these balloon loans is now wondering am i the next person to fall into this . Definitely, definitely wondering who is next. Reporter the driver said the letters were just the first surprise. The drivers went in with these letters to the bank. They were told that they were bundled into a loan and sold. The San Francisco credit union has now acknowledged th