What should I do?

I ordered my niece a gift my SIL sent to me on her list. A Spirograph. I got one off eBay as it was cheaper but what she wanted. I got in touch with the seller to ask how much longer for it to be delivered. It was past the delivery date. I’m OCD. He told me it was on its way. But didn’t say when. I asked him again how much longer?

I then asked for a refund. I had ordered from another store getting no answer from him. He kept saying it was undelivered to my address. Yea right. I have lived at the same address for many years. Kept saying I want a refund.

Monday comes and says delivered the package. Malarkey. I did get it today with the other Spirograph I ordered from the other store. eBay did credit me for what happened.

Should I send it back? Or should I resell it online?