Q: I read your Nov. 16 column about how Federal Employees Retirement System employees can redeposit retirement refunds. I’m a military retiree, but I spent approximately 5.5 years post-military time at the Small Business Administration and Department of Homeland Security. Unfortunately, I made the mistake of taking a very small refund for my retirement time at SBA, totaling about 18 months. That put me under the 5 years of federal service that I would need to qualify for a pension, albeit a small one. As I read your column, I gathered that I can repay the amount I received at…