Amazon return through seller – current status not being updated?

Hi, I’m not sure if this is the correct place to post so please point me in the right direction if it isn’t. I bought an item that was about $140 a few weeks ago, and requested a return from Amazon and it was approved (I later realized it was through the seller, but I didn’t think anything would be a problem or much different because the return process seemed similar to other returns I have done with Amazon not with sellers.

The return request was approved on January 17th, I shipped the item January 20th, and UPS says it was delivered yesterday morning. But I don’t see anything updated on Amazon. All it says on there is that return request was approved on January 17th when I requested it, and I haven’t gotten any other email notification updates sent to me either (that are linked to my Amazon account). Does anyone know why this might be? And when I can expect a refund or update? I did check my account to see if the refund had been processed and just not said so on Amazon but it hasn’t.