My tax return for 2015 was received by IRS on Dec 20th 2018. Was told by them they mailed out my refund check to Singapore on Apr 19th and may take up to 9 weeks to get it.
Their website says to wait up to 45 days and when I asked the agent, he said that that info is only for domestic delivery and not international mail delivery.
My questions are why its taking this long and what could I do?