Anyways, need a bit of advice. On November 10th, 2016, I ordered a commission from an artist with a friend of mine and myself's characters. After a bit, I received an invoice for half of the order's total cost and paid it in a timely fashion, earning me a spot on the artist's queue. No problems whatsoever in the early stages. On January 16th, I sent another email to the artist, asking if I could cancel my commission, due to the fact that the person that was in the piece with me, and myself, were no longer on good terms. The artist replied, and it was cancelled.
The following day, January 17th, I sent the artist another email, kindly asking if he'd be willing to possibly continue the commission, with only my character in it. I had paid for the amount in full, as it was a gift to my friend from before, so I didn't see much problem with it. I didn't receive any reply, and also by this point still had not received any refund from the artist. On January 26th, I sent another e-mail, asking again if he'd be willing to continue the commission, but instead place one of my other characters in the slot. Again no reply, no refund, nothing.
Fastforward to today, and I decided to send him a note on FurAffinity, as I wasn't sure if maybe there was an issue with e-mails, and FurAffinity lets you know when the recipient has read your message. So I typed out a note, kindly asking again if he'd be willing to continue the commission, and if not that it was totally fine, reminding him that I hadn't received any refund either. He read the note within fifteen minutes of me sending it, fastforward eight hours from then and I have no response, and no refund.
His TOS does say he will give refunds depending on the amount of work already done, and since I hadn't even received a base sketch, I assumed a full refund of the original half paid would be in order. Now he's convinced me he's blatantly ignoring me. Considering this is a decent sum of money, I'd like to do something, but I'm not sure what. Please help!