Sorry I hadn't gotten an update here sooner - a huge mess of stuff is going on in real life this past week and I kind of spaced it.
An update from the artist was received before the date I had given them and private contact also happened. I'm still not happy with how everything went, but I was satisfied with the responses I received and I am giving them a little time to make things right as they have now upgraded my commissions as an apology.
I know that perhaps I shouldn't have given them any more time, but as I am still under my paypal protection and I know that this year has been horrible to everyone I was willing to give them a little more time. I'm keeping a close eye on how long I have with paypal to file a charge back and I won't be letting it go that long by any means. At the very most I could see giving them until this month is up and that is assuming that contact and progress updates continue up until then.
I really appreciate all the responses and advice I've gotten - going forward I won't be as lenient if an artist ghosts me but I'm willing to give them the benefit of the doubt this time because of all of the circumstances surrounding it. I'll also update here again when there's something to report on. It hasn't quite been a week since I was last chatting with them in notes so in a day or so I'll see if they have any sketch updates.
Quick Edit I've seen work in progress shots now and I'm really pleased with them! It's looking like a happy resolution is on the way. Will update again.