Ameritrade No Longer Supports Foreign Customers?

I got a letter from TD Ameritrade saying they will no longer support customers in my country from 30th October. Either I need to open a new Roth IRA account with another institution and ask the new institution to transfer my account or I will need to liquidate my account. I have a brokerage account with Interactive Brokers but I suppose that I won't be able to open a new Roth IRA account as I'm not resident in the US. Anyone who has better information on this let me know, please. So, I'm guessing my best option is to just close the account. There are no net profits and there is no penalty for withdrawing your contributions. I have less than $10k in the account. PS - I just sent a "ticket" to IB asking this question.