Rear Suspension Springs problems of the 2016 Toyota Tacoma

Received recall notice 17v285000 for rear differential leak. I took the truck to the dealership with less than 9k miles and the truck had the dreaded leak. Dealership grounded the vehicle. It has been over a month and 4 check ins with the dealer and no eta for fix. Called customer service and they cannot give a time for a fix. They have provided a rental vehicle, first a Dodge truck since I had obligations, they provided that for 2 weeks then requested I get a car. I agreed but now it is time for vacation and need a truck again. Called customer service to explain frustration with delay the gave me a case number 1707241363 and stated since I was requesting an immediate fix or for them to purchase a case manager would have to call me within 24 hours. Case manager did not call within 24 hours but did receive a call from the dealership that enterprise had no trucks at this time but as soon as one was available they would provide me with a truck. I called back to customer service and was connected to case manager joan who said, "did the dealership call you? " I explained yes but there must be some confusion. I want my truck back fixed or for them to purchase truck back. She got very loud and unprofessional and stated. " it is a recall and we are only providing loaners and no buybacks". This has made the situation worse and I explained that there are other issues that have been reported to the dealer as well such as transmission not going into gear and squeaky leaf springs. I let them know that I thought Toyota would have had a better plan in place to have the parts available and the length of wait time is unacceptable. Perhaps a class action law suit needs to start now. I had to ask 4 times for her managers name and she finally said she would call me within 1 business day and her name is melinda. This is my first new vehicle for me and not a good feeling.