Buyer wants to cancel, then demands cheaper shipping

[3islanders]

Buyer used Buy It Now, and paid.  Messaged me a few hours later, twice, asking to cancel because she "didn't realize" the shipping cost more than the item. The shipping would have been stated on the page, and she PAID. So probably buyer's remorse.  I told her to go ahead and request to cancel, and unpacked her item. Then she messaged again disputing the shipping cost. I had used calculated shipping, within Canada, weighed and measured the box before listing, and eBay still came up with a cheaper price than what it would cost me to mail it. Buyer doesn't believe me, demands weight and dimensions so she can calculate the shipping herself.

Now she's asking for cheaper shipping rates via a different service. It's a perishable item so I am not offering slow regular parcel.

I don't see this going well -- given that she first sent 2 requests to cancel, am I OK to go ahead and do it?  She didn't use an official link from her end, just a message asking to please help her cancel. Then all the back-&-forth started.  Augh, I forgot what a hassle selling on here is  >:[

What do I do now?

[pjcdn2005 · Accepted solution]

A buyer can send a 'cancellation request' only up to an hour after purchase.  After that, they can ask the seller to cancel by sending a message....there is no other way to do it.  
I would cancel using buyer requested to cancel. 

[davidjmoon · Accepted solution]

One point I would add is this, When the buyer pays, Ebay gets the money, it takes them 2 days to process the payment over that time, and then release the funds to the seller. SO, If a seller wants to cancel their order an hour after submitting payment, than you are going to want to explain to them that you cannot initiate the refund until Ebay clears their payment. If you do not, and instead you put the cancelation request in to Ebay as soon as the buyer Asks, than the refund will pay out of your processed available funds, or if there isn't enough funds, than Ebay will pay them out of your bank account. So you might be paying a refund, out of pocket, for up to 2 days before you even receive the funds your refunding. Why would you want to give back something, that you haven't even received yet? That's just bad business.