The sliding part that adjusts the headset so that it stays on my head has broken. I was wondering if I could get some advice about this, or a place to buy a replacement part since I couldn't find anything about this online.

I recently got the duo pack that had Please, Don't Touch Anything and Prison Boss VR. Later I decided they weren't the best match for me after playing each game for about 10 - 30 munutes each, but when I get to get a refund it said I couldn't because...