I have ordered several parts from Rock Auto with n...

I have ordered several parts from Rock Auto with no issues. Then they sent the wrong part. After answering 300 questions, I got the return authorized but the return label button would not work. I tried it several times and I just get error messages. I tried to use the email button and it also would not function. I tried calling them and got a very rude receptionist who will not inform anyone of the issue or let me talk to anyone as they do not have customer service available by phone. I have been happy with Rock Auto to this point but if this is how their customer service is for a returning customer then I will no longer purchase from them.