[RemurReturn]

You can provide a PR to Walmart, but wait until you receive confirmation from the chargback.

They will liaise with Walmart and may well ask for the PR. On the other hand, they may approve your claim.
In short, be patient and take It one step at a time.

Will do, I'll see where this leads, hopefully they get back to me soon, I'll keep you posted! Thank you so much!