About a month ago (just checked my eBay account and the item in question was purchased on the 22nd March) DH sent money to my account for a golf club (A big bertha) that I bought for $40 on eBay.
Anyways, on the description of the item, it said to wait for 11-14 working days for delivery. By the 30th of March I hadn't heard squat from them - which started ringing the alarm bells early.
This is what I'd sent (have not included usernames):

Hi, I was just wondering if you had sent the item yet? I'm not in any rush for it, I was just curious. Thanks in advance
I asked that because usually the seller has put that it's been sent and it had been a week and nothing had been highlighted saying it had been sent. And I'm also used to getting an email from the seller saying it has been sent.

Their reply :

really sorry mate but only go the chance to send the item off on monday the 29th sorry for the delay.
cheers.
Ok, no worries I say - Alarm bells die down a bit. I admit, I have done that too, but I've given the buyers warning that the items might be delayed a bit and the reasons why.
I replied with :

Not a problem Was just wondering when it was sent
Really looking forward to getting it
Fast forward... waiting - waiting.. Until I got this on the 8th of April

hey *username* i have just recieved an email telling me that they cannot send my driver to you due to height restrictions. I am verry sorry about how long this process has taken and i will be giving you a full refund
verry sorry, *username*
Initially I was disappointed, but then the alarm bells started ringing again - much louder this time. Told DH and he was so bummed about it. I said no worries, thanks anyways. It didn't occur to me until two days later that the person had not asked for bank details.
So, on the 10th of April, I sent them this message :

Did you want my bank details so you can send the refund?
It's now the 13th and I've heard nothing back from them. I've thought about leaving negative feedback - but was wondering what you ladies think I should do? Leave negative feedback and report him or just leave it? Right now, $40 will get us our much needed tank of petrol so it's not like $40 is nothing to us
TIA