The next day, the company said it would release Sehy from his contract for free.
"It's not something we did, it's just where is contract is now," Sprint spokeswoman Kelly Schlageter said. "He just happens to be at a point in his contract where he can cancel without penalty."
Schlageter said that might not have been the case when Sehy called in November and in January.
The spokeswoman said work on Sprint's infrastructure continues, with conversion of the company's cell towers to new the 3G and 4G LTE network about 75 percent complete in the Chicago market.
"The build began outside the city core and worked its way in, so much of the remaining work will be in the city core," Schlageter said. "In fact, we anticipate converting many sites in the city in March and April."
In the meantime, customers like Sehy who are unhappy with their service should contact Sprint's customer care team by dialing *2 on their cellphone, or calling 888-211-4727, Schlageter said.
Decisions on refunds or contract terminations will be made on a case-by-case basis, the spokeswoman said.
"We know this has been a difficult situation for our customers," Schlageter said. "It's important they get the service they pay for. … We're absolutely willing to work with customers."
Sehy said he has been told Sprint will do some research and determine within the next 10 days if he's due further refunds.
No matter the outcome, he will take his cell business elsewhere.
"I will look into switching to another carrier as soon as possible," he said.