I realize that others have had good experiences with this merchant, but I am in the middle of a very poor buying experience. Here is the message I just sent to PayPal to dispute a transaction because I have not been able to get the merchant to respond to my e-mails for five weeks:
"The disputed transaction is for the purchase of four KR KT150 audio tubes. The attached e-mails will confirm that (i) I paid for the tubes on April 1, 2022, (ii) I e-mailed the merchant the next day to say I thought I had made a mistake as to the model and had a question about its compatibility with my equipment, and asked that the merchant contact me about it, (iii) having received no response from the merchant, I e-mailed again to cancel my order on April 5, (iv) on April 7 the merchant did respond and promised to check on my compatibility question and get back to me promptly, (v) despite my sending follow up e-mails on April 19, May 1, May 6 and May 11, I have not heard back from the merchant and (vi) in my last e-mail of May 11, I warned the merchant that I would contact PayPal and dispute the transaction, which I am now doing."