That could be totally unrelated - I had the same thing happen last month. Eventually (~3 attempts over a week) managed to fight through the various chat options that tried to dead-end into "wait 3-5 business days and check again", and once I had a person on they took about 5 minutes reading the background and said "oh, I can see that this return was processed months ago, and we have it listed as received. I will return the amount you were charged immediately!"