Constant buzzing in the left ear.

Hello,

One evening I heard a high-pitched noise for a few minutes in my left ear, and since then I’ve had a constant buzzing in my left ear whenever I turn on the headphones. Of course, my warranty has expired, and Bose is offering to sell me a new pair instead of repairing them for a fee.

Everything works apart from that, so it’s just annoying, but I’d like to get them fixed.

What should I do?

Thanks in advance!