The buyer purchased a phone system. After about a week I get a message that the battery won't stay charged so I order a battery and have it shipped to him. Now, over 30 days later he states the messages are garbled/distorted and he would like an exchange. I don't want to refund him, he has waited this long...thoughts?

After 30 days, the buyer states the answering machine doesn't work | Ask a Mentor

After 30 days, the buyer states the answering machine doesn't work | Ask a Mentor | eBay Community