Mike Hamersky, the Knicks fan who got into an altercation with James L. Dolan, the team’s owner, outside Madison Square Garden last week, now says he is having trouble renewing his season tickets.

Hamersky, a lawyer from Queens, made headlines last week when he spotted Dolan walking past him and, he said, yelled at Dolan to sell the team. Dolan acknowledged that he had heard what was shouted and that he had confronted Hamersky and cursed at him.

Although Hamersky was able to get into the Knicks game that night, he now says he has been thwarted by the Knicks in his attempts to renew his ticket plan for the 2017-18 season. The early deadline to renew tickets was Tuesday while the final deadline is April 25.

Hamersky said he had not had his emails answered by the Knicks’ ticket representative whom he normally deals with, was locked out of the team’s online ticket portal, and had been hung up on multiple times when he tried to contact someone by phone.