Tindie Team has been nowadays not cooperating with the buyers (That’s what my experience says). There is conditions for two shipping methods :
If you want to provide different services of the same shipping company. For example, I prefer India post for shipments because DHL & FedEx cost me $100 to the US. So, in India post, there are two services involved either Speed Post or Registered Airmail. So, the Tindie algorithm doesn’t allow us to add India post - Speed Mail and India Post - Registered Airmail. Here, the customer will be able to view only one service that you created first in shipping options. To avoid this problem, I choose EMS as the One shipping method and India post-Registered Airmail as the second shipping option. In a nutshell, take care that you don’t create multiple options for the same shipping company.